An antiglycolytic agent: Prevents the breakdown of glucose.
What is a Antiglycolytic agent?
A substance that inhibits the metabolism of glucose by cells in a specimen of blood. The most common antiglycolytic agents are sodium fluoride and lithium iodoacetate.
Why are Antiglycolytic agents used for collecting certain blood specimen?
It preserves glucose for up to 3 days and inhibits the growth of bacteria. ANTIGLYCOLYTIC AGENTS – SODIUM FLUORIDE combined with POTASSIUM OXALATE: Used to collect Ethanol specimens to prevent either a decrease in alcohol concentration due to glycolysis or and increase due to fermentation by bacteria.
When disposable latex tourniquets become soiled with blood it is best to?
Phlebotomy final exam
| Question | Answer |
|---|---|
| Which of the following is used by the laboratory to identify a specimen thoughout the testing process? | accession number |
| when latex or vinyl strap tourniquets become soiled with blood, it is best to ….. | throw it away. |
| Fluid found around the heart is ….. | pericardial |
What happens if you mix a specimen too vigorously?
In theory: (i) when blood tubes are mixed by gentle inversion, the risks of formation of either micro clots, clots or fibrin filaments are limited; and (ii) a vigorous mixing (or shaking) promotes erythrocyte injury or spurious hemolysis [30].
What color tubes are drawn last?
1. Collect citrate tube (blue top) last, after 20mL of blood has been withdrawn for other testing, or as waste. Just prior to drawing the blue top tube as the last tube, draw 1mL into a discard blue top tube to prevent cross contamination from the additive of previously drawn tubes.
Why are needles color coded?
Needles are color-coded to indicate their________________.
What is the most important step in specimen collection?
Patient ID, the process of verifying a patient’s iden- tity, is the most important step in specimen collection. Obtaining a specimen from the wrong patient can have serious, even fatal, consequences, especially specimens for type and cross-match prior to blood transfusion.
What is the most common anticoagulant used?
The most commonly prescribed anticoagulant is warfarin. Newer types of anticoagulants are also available and are becoming increasingly common. These include: rivaroxaban (Xarelto)
Which of the following indicates the largest size needle?
One. Which of the following indicates the largest sized needle? 20 gauge, 23 gauge, 16 gauge, or 21 gauge? 16 gauge.
What should be done immediately after removing the needle from the patient?
Engage the needle’s safety device immediately after withdrawing it from the patient’s arm and place the needle/tube holder unit in the sharps container. Under no circumstances should you remove the needle from the tube holder before disposal because it increases your risk of a needle stick.
What specimen can be centrifuged immediately?
Plasma specimens are obtained using a Vacutainer tube containing an anticoagulant. These specimens can be centrifuged within minutes after collection. Any vacuum tube containing an anticoagulant should be inverted gently 8-10 times immediately after blood collection to ensure the intended action of the additive.
What test goes in what color tube?
Blood Collection Tubes
| Tube cap color | Additive | Common laboratory tests |
|---|---|---|
| Lavender or pink | Potassium EDTA | Hematology and blood bank |
| Gray | Sodium fluoride, and sodium or potassium oxalate | Glucose (especially when testing will be delayed), blood alcohol, lactic acid |
What is the correct order of draw tubes only?
This standard recommends that EDTA tubes be drawn first to ensure good quality specimen, followed by other additive tubes and finally, serum specimen tubes.
What size needle is used for blood?
21-gauge
21-gauge needles are the most commonly used for venipuncture, while 16-gauge needles are commonly used for blood donation, as they are thick enough to allow red blood cells to pass through the needle without being broken; In addition, the thicker caliber allows more blood to be collected or delivered in a shorter …
What size needle do doctors use?
Needle lengths for intramuscular injections are usually 7/8 to 1-1/2 inches. Subcutaneous injections call for a 1/2 to 5/8 inch needle. Intradermal injections require a needle length of 3/8 to 3/4 inch.
What is the most important part in blood collection?
Cleaning the venipuncture site is the most important part of the blood collection procedure.
Do blood thinners shorten your life?
Blood thinning medications do save lives, because they can treat or prevent dangerous blood clots. But, they also pose one possible and very serious side effect: Bleeding. Since blood thinners slow the clotting of blood, unwanted and sometimes dangerous bleeding can occur with the use of these medications.
How does anticoagulant work in the body?
While they’re useful in stopping bleeding, they can block blood vessels and stop blood flowing to organs such as the brain, heart or lungs if they form in the wrong place. Anticoagulants work by interrupting the process involved in the formation of blood clots.
Which size needle will blood flow the fastest?
50 Cards in this Set
| Which bore (diameter) of the needle is the smallest? | 23-gauge needle |
|---|---|
| The common needle gauges used for drawing blood with an evacuated system are: | 20, 21, or 22 gauge |
| Through which size needle will blood flow the fastest? | 20 gauge |
Why are Antiglycolytic agents used for collecting certain blood specimens?
What is the purpose of glass particles present in serum separator tubes?
Clot activators are substances (eg, glass, silica, thrombin) that promote clot formation.
What tube contains an Antiglycolytic agent?
Sodium fluoride is the antiglycolytic agent. Tube inversions ensure proper mixing of additive with blood. K2EDTA (plastic) 8 For lead determinations. This tube is certified to contain less than .
What are Antiglycolytic agents?
What is the most common Antiglycolytic agent?
What is the most most important step in specimen collection?
What is the syringe method used for?
A syringe needle (SN) is commonly used to obtain blood specimens from the femoral vein. The vacuum tube (VT) method avoids the needle stick potential of the SN technique during transfer of blood from the syringe to the collection tubes.
What are some Antiglycolytic agent?
Which is the most common antiglycolytic agent in blood?
an·ti·gly·co·lyt·ic a·gent. A substance that inhibits the metabolism of glucose by cells in a specimen of blood. The most common antiglycolytic agents are sodium fluoride and lithium iodoacetate.
When do you add an antiglycolytic agent?
An antiglycolytic agent has to be added to inhibit the glycolytic enzymes.
When to use sodium fluoride as an antiglycolytic agent?
(1) Sodium fluoride commonly has been used to stabilize the glucose, but it is not effective as an antiglycolytic agent for an hour or more after blood collection, with a mean glucose loss of about 5% in the first four hours.
Why is it important to know the definition of an agent?
The importance is that the agent can bind the principal by contract or create liability if he/she causes injury while in the scope of the agency. Who is in agent and what is his/her authority or often difficult and crucial factual issues.
