Which one of the following statements gives a proper rule for tightening a tourniquet? Find out your level of knowledge from this test and see how much you know. Australian Whistleblower, If phlebotomists have dermatitis, they should: A. . Which statement is incorrect? It is easier to see the flash when entering a vein. Which additive contains a substance that inhibits phagocytosis of bacteria by white blood cells? [PubMed] [Google Scholar] 3. "Designed to be used in combination with the fifth edition of the 'Phlebotomy essentials' textbook as a valuable learning resource that will help the student master the principles of phlebotomy by reinforcing key concepts and procedures 1.Set up-Vacutainer system, alcohol, gauze, bandage, tourniquet, gloves, sanitizer, sharps 2.Arm prep-locate vein, tourniquet, close hand, disinfect, let dry 3.Specimen collection-anchor vein, bevel up, quick insert, fill, release, and tilt tubes 4.Arm care-release tourniquet and fist . Answer. Location: Defence Medical Education and Training Agency, Joint Service Publication 570, 2006, 15. A 2018 study found that when civilians without medical training performed prehospital tourniquet application, the risk for mortality was six times lower in patients with peripheral vascular injuries or blunt trauma to the extremities. 1. Place your tourniquet around the injured limb, between the open wound and the heart (or proximal to the wound) the purpose is to cut off the strong blood flow within arteries leaving the heart, not the more superficial veins returning blood back to the heart. Which statement is incorrect? There is a permanently attached needle with a sleeve inside the transfer device. Patients should sit or lie A tourniquet is applied well proximal to the site. Withdraw the needle gently and apply gentle pressure to the site with a clean gauze or dry cotton-wool ball. All of the aboveCovering or shielding the needle, retracting the needle after the use, using a device to blunt the needle. In: Zajtchuk R, Grande CM, eds. There is a permanently attached needle with a sleeve inside the transfer device. (A half-knot is the same as the first part of tying a shoe lace.) Click on the image to see a larger version. While they do work in an emergency, commercial tourniquets are not available in first aid kits. A tourniquet should be loose enough so that you can slip two fingers under the tourniquet band. The new WHO guidelines provide recommended steps for safe phlebotomy and reiterate accepted principles for drawing, collecting blood and transporting blood to laboratories/blood banks. If you are a first responder or emergency medical professional, you'll have access to a commercial tourniquet. which statement is incorrect? the venipuncture should be performed distal to (below) the hematoma. Casualties who are alert and can swallow should not be allowed to take fluids by mouth. No tube was drawn to remove air in the butterfly tubing. [PubMed] [Google Scholar], 23. When a traumatic injury on an arm or leg leads to rapid blood loss, a properly applied tourniquet is the most important piece of equipment you can have.. Where should you apply a tourniquet? Needle = 1/2 - 3/4 inch It takes around two hours for a tourniquet to cause permanent damage, including nerve damage, injury to blood vessels, and skin necrosis (death of skin cells). 12 13 14 . Found inside Page 1010 Failure to have on hand sufficient and proper material to complete a dressing .. 11 Lack of neatness . Which of the following tube stopper colors indicates something other than the presence (or absence) and type of additive in the tube? Found inside Page 524All events shall commence and be finished at the sounding of a gong , or other audible signal . What Is Your Future Home Going To Look Like? Answer and Rationale: B; you should NOT wait to remove clothing prior to applying tourniquets. Choose the most appropriate arm for insertion and apply a tourniquet. What are all anticoagulants that remove calcium from the specimen by forming insoluble calcium salts and therefore preventing coagulation? Once the bleeding has slowed or stopped, secure the windlass by tying one or both of its ends to the injured person's arm or leg. List tests affected by diurnal variations 1. The present augmented reality (AR) system allows the surgeon to view the tibial and femur axis superimposed on the . The most common reasoninsufficient pressureis consistent with prior studies. DISCLAIMER:The CAT should be a LAST RESORT for blood control management. Office of the Surgeon General, US Army 2005, 6. Found inside Page 148 , Failure to have on hand sufficient and proper material to complete dressings . After the vein is entered, the _____ should be completely pushed into the evacuated tube. While collecting a stat blood culture and electrolytes on a child in the emergency room, the phlebotomist was asked by the physician to get an extra tube of blood to check for metal poisoning. the max time a tourniquet should remain on the patients arm is: A 1 minute B 2 minutes C 3 minutes D 5 minutes: A 1 minute: the vein of choice for veinpuncture is the : A basilic B cephalic C median cubital D radial: C median cubital: the vein located on the thumb side of the arm is the: A median cubital B basilic C cephalic D brachial: C cephalic Proper use of tourniquet is beyond the scope of this article , but tourniquets . After six hours, the damage to the muscle tissue can be bad enough that it's necessary to amputate the affected limb. When applied for a longer time, tourniquets can cause permanent damage to muscles, nerves, and blood vessels. Some articles support the use of improvised TQs, when they are properly applied.4,5 Though, other data suggest that improvised TQs are not nearly effective as commercially available TQs.4,6 This may be for any number of reasons. Change their gloves for frequently. Make five qualitative and five quantitative observations about the room in which you now sit. The recommended means to control extremity bleeding in a tactical environment while under fire is a rapidly and properly applied tourniquet. 23: Term. Tourniquets cannot be used for injuries to the head or torso. Are you ready to move out and live in the real world without the help of your parents? Blood Collection Equipment, Additives and Order of Draw. Once you find the source of the bleeding, apply direct pressure to the wound. Depending on the type of x, y and z you may have to be careful to store a copy into the tuple. Crime in England and Wales 2005/06. Incorrect blood/anticoagulant ratio The amount of additive placed in a tube is intended for a certain volume of blood. opposite arm, then blood should be drawn from BELOW (distal to) the IV. A home care phlebotomist had a requisition to collect a complete blood count (CBC), plasma K, partial thromboplastin time (PTT), and prothrombin time (PT). Underfilled additive tube will have incorrect blood to additive ratio: Definition. Which one of the following tubes/additives is sometimes used to collect DNA tests? The tourniquet should be painful to the patient if applied correctly; this confirms that arterial bleeding is controlled (1). A tourniquet can remain in place for 2 minutes. That said, a commercial tourniquet is preferable to a "homemade" one if it's available. The purpose of sodium citrate in a specimen collection is to: The part of a syringe that shows measurements in cc or ml is called the: This part of the evacuated tube holder is meant to aid in smooth tube removal: The best choice of equipment for drawing difficult veins is a: Mixing equipment from different manufacturers can result in: You are most likely to increase the chance of hemolyzing a specimen if you use a: 25 gauge butterfly needle to collect a specimen from a small child. Additionally you can purchase a military surplus tourniquet for about 10.00 or even cheaper use that ugly real tie (not the clip on) someone gave you as a gift. PST=Heparin + T. Gel Measurement of copper, a trace element, requires blood collection in a tube with a? 16 Not treating shock . B. No. Calkins D, Snow C, Costello M.et al Evaluation of possible battlefield tourniquet systems for the farforward setting. The goal of applying a tourniquet is to restrict blood flow to the injured limb and prevent life-threatening blood loss. There are other ways to sufficiently and safely control bleeding in most injuries; tourniquets should only be used in worst-case scenarios when there are no other options. the venipuncture should be performed distal to (below) the hematoma. 4 Using the wrong materials: Inappropriate materials, such as a cord, can cut into the skin. Electrolytes should never be collected in a: EDTA; Citrate (sodium); Heparin (ammonium, lithium, sodium); Oxalates (potassium). Found inside Page 17If the test is done correctly , a wheal will be raised at the site of the injection . A tourniquet properly applied can save life but endanger limb." (11) These opinions were repeated in the 1988 revision to the Emergency War Surgery text, and these opinions were prevalent . Tourniquets are tight bands that are tied around an arm or leg to stop bleeding from a serious wound, such as from a gunshot. This test is collected in a . Which of the following tests would be most affected by carryover of K2EDTA? Commercial-use tourniquets are made from recommended materials and specifications, so they're the most effective and easiest to use. What additive can be found in a royal blue-stopped collection tube? Why or why not? It's not ideal to use a belt as a tourniquet. Wait 2 minutes before reapplying the tourniquet. Mil Med 2006171352356. into sharps container immediately following venipuncture. Local hypothermia to prolong safe tourniquet time. Mil Med 2006 171 352-356. A 100-W100\text{-W}100-W heater is designed to operate with an applied voltage of 120V120 \text{~V}120V. (c)(c)(c) Using the Part (b)(b)(b) result, find the approximate power delivered to the heater if the potential difference is decreased to 115V115 \text{~V}115V. Compare your result to the exact answer. What is the fewest number of tubes needed to collect a CBC and protime when using a butterfly on a patient who is a difficult draw? Consider that a tourniquet, once applied, needs to be removed at some point. Anything can be used as a windlass, as long as it is strong enough to hold the tourniquet and can be secured in place. [PubMed] [Google Scholar], 4. Wencke J C, Walters T J, Greydanus D J.et al Physiological evaluation of the U.S. Army onehanded tourniquet. Define hemolysis and state causes from Box 9-3, p. 293 1. If hands are heavily contaminated with organic material and a sink is not available, the phlebotomist should clean them with? The purpose of sodium citrate in a specimen collection is to: The part of a syringe that shows measurements in cc or ml is called the: This part of the evacuated tube holder is meant to aid in smooth tube removal: The best choice of equipment for drawing difficult veins is a: Mixing equipment from different manufacturers can result in: You are most likely to increase the chance of hemolyzing a specimen if you use a: 25 gauge butterfly needle to collect a specimen from a small child. Correct Incorrect What is a disinfectant is preferred by the HICPAC for use on surfaces and instruments? Which one of the following tubes would the phlebotmist add to the ones already being collected? Starnes B W, Beekley A C, Sebesta J A.et al Extremity vascular injuries on the battlefield: tips for surgeons deploying to war. However, in the case of severe bleeding and life-or-death emergencies, properly using a tourniquet is an effective way to stop bleeding and keep an injured person stable until they can receive proper medical attention. a. Ondansetron Oral Disintegrating Tablet works almost as . C) The first statement is true; the second is false. Even if you know how to properly use a tourniquet, it's possible to make errors. On the battlefield, a properly applied tourniquet can be an extremely effective means of controlling severe extremity wound hemorrhage. Slowness in work . Using a tourniquet is only meant as a stop-gap measure to "buy time" while you wait for medical personnel to arrive. Place the windlass on the knot, then tie the loose ends of the tourniquet around it using another square knot. Figure 4-28 shows the proper steps in applying a tourniquet. Restrict venous and arterial blood flow. Ask the patient to hold the gauze or cotton wool in place, with the arm extended and raised. It's very important that first responders and medical staff who treat the injury know when you applied the tourniquet. (1) Tie a half-knot. 15 . d. The tourniquet must be tight enough to control bleeding so it will be painful for the patient. 1.Set up-Vacutainer system, alcohol, gauze, bandage, tourniquet, gloves, sanitizer, sharps 2.Arm prep-locate vein, tourniquet, close hand, disinfect, let dry 3.Specimen collection-anchor vein, bevel up, quick insert, fill, release, and tilt tubes 4.Arm care-release tourniquet and fist . Apply the tourniquet between the heart and injury. Which additive can be found in four separate tubes with different stopper colors? During venipuncture the tourniquet should not be left on longer than: 1 Minute. Which of the following additives is most commonly used for chemistry tests? It's also hard to know if you're using a tourniquet correctly. Next, you'll need to make a lever you can use to twist the tourniquet tighter. State which tubes yield serum and which yield plasma when centrifuged 13. Glass particles present in serum separator tubes: Which is the best tube for collecting an ETOH (ethanol) specimen? a. Ondansetron Oral Disintegrating Tablet works almost as . Tell the person that the tourniquet will hurt but that it may save their limb or even their life. In a gravimetric analysis, the summation of all the components' mass fractions must be equal to one. During venipuncture the tourniquet should not be left on longer than: This test is collected in a tube with a light-blue top: Which of the following STAT tests is typically collected in a lithium heparin tube? No. Which statement about tourniquet application is correct? D. Wear a barrier hand cream or lotion. The patient should be placed in a position that promotes blood flow to the brain. The CLSI H3-A6 guidelines recommend that tourniquet application time should not exceed one minute and tourniquet should be released as soon as possible after the blood begins to flow to prevent spurious variation of several plasma analytes. Tourniquets are sometimes used during medical procedures and surgeries to limit blood flow to a limb. Which blood specimen additive can inhibit the metabolism of glucose by the cells, Which of the following items is unnecessary when performing a routine venipuncture, A serum specimen is requested which of the following evacuated tubes can be used to collect it, Which of the following are all anticoagulants that remove calcium from the specimen by forming insoluble calcium salts and therefore prevent coagulation, In a successful venipuncture, evacuated tubes fill automatically as soon as the tube stopper is pierced because of, Lavender stopper tubes are most commonly used to collect, Which of the following is one reason the evacuated tube system (ETS) is the preferred blood collection system, Exposure of the blood to contaminants is avoided, Lithium heparin is a suitable anticoagulant for which of the following tests, Which one of the following additives can be found in a royal bluetop collection tube, Measurement of copper, a trace element, requires blood collection in a tube with a, The blood additive ratio is most critical for a specimen collected in this tube, If phlebotomist have dermatitis, they should, Decontamination of hands after glove removal is essential because, Hand contamination might not be visible to the naked eye, Which disinfectant is preferred by the HICPAC for use on surfaces and instruments, EPA-registered sodium hypochlorite products, After a blood spill, a disinfectant is applied and must have at least 10 minutes of contact time for cleanup to be effective, If hands are heavily contaminated with organic material and a sink is not available, the phlebotomist should clean them with, Detergent-containing wipes followed by a sanitizer, The purpose of a transillumination device is to, Which statement is incorrect? Red Nose Pitbull Puppies Near Me, CLSI standards advise against using these on infants and children under 2 years old: Wearing gloves during phlebotomy procedures is mandated by the following agency: What criterion is used to decide which needle gauge to use for venipuncture? Still, knowing the right way to apply a tourniquet could potentially save someone's life. ( c ) Tourniquet applied so as to stop bleeding but at wrong points , or in such way as to injure patient 12 , Not treating shock . If a blood pressure cuff is used for venipuncture in place of a tourniquet, the pressure used must be: In general, an anticoagulant is unable to: Create a barrier between a user's hand and the needle after use. Found inside Page 5Tourniquet improperly applied Failure to stop bleeding Not treating shock . J Trauma 2003 54 (5 Suppl)S219-S220. Mark a "T" with the date and time on the person's forehead or another easy-to-see place. What is the fewest number of tubes needed to collect a CBC and protime when using a butterfly on a patient who is a difficult draw? D) The first statement is false; the second is true. In an emergency, you may not be able to get a hold of a tourniquet quickly. . 13 Assistance lent by patient .. 14 Tourniquet improperly applied . For example, pens or pencils, sticks, or spoons can be used as a windlass. Home Office Statistical Bulletin. Always draw a discard tube! Conditional Formatting provides an easy way to automatically format the Google Sheets using a formula or condition as and per requirements of the problem. Since your home first aid kit won't include a tourniquet, you might consider adding one if you work with or care for people at high risk of a bleeding injury or complications from severe bleeding, such as young children and the elderly. You will learn the right way to apply a tourniquet as well as the risks of tourniquet use. Why do phlebotomists use tourniquets for blood draws? Secure the windlass to keep the tourniquet tight and in place. Tourniquet should be applied mid-upper arm. 9 . They need to know that the process of applying a tourniquet can be extremely painful (and they are probably already in a lot of pain). other. Unadilla National 2021, on which statement is incorrect? Twist the windlass to increase the pressure. Found insideMost serious haemolytic transfusion reactions arise from careless identification of patients and incorrect form labelling. This tube stopper color indicates that the tube contains EDTA: What anticoagulant is contained in a plasma separator tube (PST). Try to stay calm and focused. However, femoral nerve injury has an iatrogenic aetiology in as many as 60 % of cases, according to data obtained from large-scale studies [].The first case of postoperative femoral palsy was described in 1896 by Gumpertz, who reported a case of post-hysterectomy . How quickly should a tourniquet be applied? J Trauma 200354(5 Suppl)S221S225. Wencke J C, Walters T J, Greydanus D J.et al Physiological evaluation of the U.S. Army onehanded tourniquet. Bellamy R F. Combat trauma overview. Some guidelines suggest removing the tourniquet as soon as blood flow is established. Trained medical personnel may find it more . Readers like you help support XDA Developers. When you make a purchase using links on our site, we may earn an affiliate commission. If a person is bleeding uncontrollably and help is not nearby, they may bleed out before first responders can get there to provide necessary medical care. Pressure with a gauze pad should be applied for 4 to 5 minutes. There is a permanently attached needle with a sleeve inside the transfer device. What are all anticoagulants that remove calcium from the specimen by forming insoluble calcium salts and therefore preventing coagulation? Bull US Army Med Dep 1945877784. They're also better suited to minimizing risk when they're used. Something Medical includes a basic pocket trauma kit and a ready-made tourniquet. 2. Minimize time spent on lecture and group discussion to allow as much time as possible for hands-on training, individual practice and competency checks. Tourniquets are tight bands used to completely stop the blood flow to a wound. After its removal, you must wait 5 minutes before reapplying it. 13. Found inside Page 524All events shall commence and be finished at the sounding of a gong , or other audible signal . What gauge needle is used primarily for infant or child veins, & difficult or hard veins of adults? Swanson A B, Livengood L C, Sattel A B. If a suitable vein proves elusive it b. Venous distension may take longer in elderly patients. Term. Tourniquet. The other mistake is the incorrect use of a tourniquet. Tourniquets are only for limb injuries. a properly applied tourniquet should, Quarterly Bulletin of the Canadian Mining Institute. Room left in a tube if the tube is not completely filled to the stated volume. [PubMed] [Google Scholar], 24. er or a corner Toro NBA Total . . Chapter 7 Blood Collection Equipment, Additiv, Chapter 10- Capillary Puncture Equipment and, Exercise Physiology: Theory and Application to Fitness and Performance, Edward Howley, John Quindry, Scott Powers. J Am Acad Orthop Surg 20019345351. If bullets or knives penetrate an arm or leg . Decontamination of the hands after glove removal is essential because? Measurement of copper, a trace element, requires blood collection in a tube with a? Blackwood M. Treatment of wounds from fire trench to field ambulance 1916. [PubMed] [Google Scholar], 5. Prehosp Emerg Care 20059416422. The trainer demonstrated how to properly apply a color-coded Combat Application Tourniquet to a silicone simulator leg that demonstrated a below-the-knee amputation. Failure to he antiseptic Incorrect treatment 11 . A phlebotomy needle that does not have a safety feature: Must be used with a holder that has a safety feature. However, in a severe bleeding and life-or-death emergency, properly using a tourniquet can stop bleeding and keep an injured person stable until they can receive medical care. b. Textbook of military medicine part IV: surgical combat casualty care. It was unclear from the data analysis whether the type of tourniquet employed was of the improvised variety or a commercially available type, who in the field might have placed the device, and whether or not it was properly applied. Found inside Page 159If bleeding is still not controlled, a second tourniquet can be applied.8 Frequent reassessment is indicated as the for this purpose.17 Inflation should take place over a short period of time, as slow inflation rates or incorrect a temporary increase in the concentration of red blood cells, white blood cells, potassium, and other analytes, frequently caused by excess tourniquet time. This should cause distension of 19. -Citrate-Phosphate-Dextrose (CPD)-NO TUBE, BAG-Phosphotate is Buffer to keep blood stable. If less blood than required is drawn, the excess amount of additive may adversely affect the accuracy of the test results. 14 Tourniquet improperly applied .. 15 Failure to stop bleeding . Later that day, the lab called the phlebotomist to say that three of the tests would have to be re-drawn. How long should a tourniquet be applied? London: Home Office, July, 2006, 16. No tube was drawn to remove air in the butterfly tubing . Stretch vein walls so that they are thinner. Exposure of the blood to contaminants is avoided. Clerical errors can prove fatal. If an injury requires a tourniquet, it's serious and the blood flow can be life-threatening in as little as 3 to 4 minutes. Properly applied tourniquets should do all of the following EXCEPT: a. Distend or inflate the veins of choice . Wakai A, Winter D C, Street J T.et al Pneumatic tourniquets in extremity surgery. What is one reason that the ETS is the preferred blood collection system? Tourniquet should be applied mid-upper arm. [PubMed] [Google Scholar] 2. How many tubes with different-colored stoppers can sometimes go to the chemistry department? A charge is distributed uniformly throughout the volume of an infinitely long solid cylinder of radius R. Write an expression for E when r > \uparrowR. [PubMed] [Google Scholar], 19. Cara screenshot panjang samsung a10 memang sangat lah mudah, samsung a10 merupakan smartphone yang bisa dikategorikan smartphone untuk kalangan entry level. What is the normal adult range for leukocyte? Found inside Page 104A tourniquet is applied well proximal to the site. the breaking up of red blood cells due to excessive probing or pulling on a syringe plunger. 8 Insecure or granny knot . 5. A consistent amount of airspace left when a tube is filled properly. Thanks to GWOT experience, the training and gear are available to citizens nationwide. Hand contamination might be visible to the naked eye. Champion H R, Bellamy R F, Roberts P.et al A profile of combat injury. Husum H, Gilbert M, Wisborg T.et al Prehospital tourniquets: there should be no controversy [comment]. Tourniquets also have a dark side. Eur J Vasc Surg 19926288292. He collected the tubes from the client, who was lying on the sofa with her arm elevated above her shoulder on a table next to the sofa. -Acid Citrate Dextrose (ACD)-YELLOW-DNA-HLA-GENETICS c. Construct a pressure dressing over your leg wound, and remove the tourniquet yourself. Indicate whether the following statements are true or false. 16 . A consistent amount of airspace left when a tube is filled properly. 1. Other injuries may not be visible at first, especially if there is debris, wreckage, tattered clothing, or other objects in the way. B) Both statements are false. If bleeding doesn't stop, a second tourniquet should be applied proximal to the . Detergent-containing wipes followed by sanitizer. Pull, don't push. Tubes designed by the manufacturer to be "short draw" are: All of the following: Anticoagulants, Clot activators, Separator gels. 25. opposite arm, then blood should be drawn from BELOW (distal to) the IV. Found inside Page 1010 Failure to have on hand sufficient and proper material to complete a dressing .. 11 Lack of neatness . 12 Awkward handling of patient on stretcher . That's how long it will take blood to clot and bleeding to stop. a. Hematoma: The correct rate on tourniquet releasing time was low (18.5%) in our survey. The purpose of a transiliumination device is to? A properly applied cast in a mature cat can remain in place for up to 4 weeks. Apply tourniquet above the pre-selected venipuncture site. J Trauma 20066010611071. Apply Tape/Plasters at the site of puncture 8. Exposure of the blood to contaminants is avoided. Silicone tourniquets were used, by the Israeli Defense Force (IDF) soldiers, for upper extremity and calf injuries, while thigh injuries were treated by an improvised "Russian" tourniquet (IRT). . The book is well illustrated, providing step-by-step instructions for obtaining blood by venipuncture and skin puncture from adult and pediatric patients. 21. The following are possible mistakes you could make when using a tourniquet: In an emergency, knowing how to use a tourniquet can save an injured person's limbor even their life. Ensure that the time of application is written on the . Remember: The best way to avoid making mistakes when using a tourniquet is to be informed about when and how to use one correctly. In those days, before the advent of modern instruments, what was the basis on which one could claim that a substance was an element? The blood-to-additive ratio is most critical for a specimen collected in what tube? A prothrombin time (PT) & platelet count are ordered on an 80-year-old female patient. 3. No tube was drawn to remove air in the butterfly tubing. The client begins to write a book about life c. The client sits and eats with other clients on unit d. EPA-registered sodium hypochlorite product. Black Doctors Near Alabama. Which of the following items is unnecessary when performing a routine venipuncture? That might not sound reassuring, but as long as you have the right materials and know how to use an improvised tourniquet correctly, any attempt to stop the bleeding will likely be better than doing nothing. King R B, Filips D, Blitz S.et al Evaluation of a possible tourniquet system for use in the Canadian Forces. J Bone Jt Surg 198567297301. No practicing will be allowed on the field before gas , roof , electric wire , etc. A properly applied tourniquet should Restrict venous and arterial blood flow This needle gauge is used for autologous blood collection 15 to 17 Needle safety features work by All of the above OSHA regulations require that after use Tube holders with needle attached be disposed of as unit The part of the syringe that shows measurements in CC or ML is called the. 14 Tourniquet improperly applied . Gauge of needle used primarily for infant or child veins. Situation: Doctor has ordered a CBC and chemistry profile. Place used needles. 6. If the injured person is awake and alert, tell them that you are going to put on a tourniquet. Incorrect timing of artificial respiration .. long , bleeding moderately ; wound on inner 17. Place the tourniquet at the part of the limb that is closest to the heart. When forgotten after a venipuncture, a tourniquet that continues to restrict blood flow often leads to deep vein thrombosis (DVT), a dangerous and life-threatening complication that can cause permanent injury, even death. Properly applied tourniquet should: Definition. Tourniquets work only on arm and leg injuries; you can't exactly wrap a tight band around a patient's neck and cinch it down to stop the flow of blood.

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