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chap 8 McGraw-Hill
Blood collection equipment questions
| Question | Answer |
|---|---|
| what does bacteriostatic antiseptic prevent? | contamination from normal skin bacteria |
| What are Betadine, Iodine or chlorhexidine gluconate used for? | blood culture collection or an arterial puncture - for more sterility |
| Why aren't alcohol prep pads used during alcohol level collection? | due to possible contamination |
| why shouldn't adhesive bandages be used on elderly patients? | They may have fragile skin. |
| How long should the patient watch the venipuncture site before removing the bandage? | 15-30 minutes |
| leaving a Coban or other pressure dressing, in place for too long can cause what? | constriction of the tissues and possible circulation issues. |
| what should the patient be instructed to avoid after a venipuncture? | lifting and frequent bending of the elbow, to prevent the return of bleeding |
| prewarming the puncture site helps with what? | locate veins in older ppl, patients with cancer or obesity |
| when transporting specimens from facility to facility, where do you add the absorbent pad? | in the specimens containment portion of the transport bag to provide extra safety from spills and breakage |
| how do you prevent hemolysis during transport? | place the specimens in the bag, handle it gently and keep it vertical with the tube cap or closure on top |
| Translucent capped tubes are used for what? | children or adults with fragile veins |
| How does sodium citrate in the Light blue top tube work? | works by binding calcium to stop the blood from clotting |
| What the tube must be full? | The light blue tube. So the sodium citrate and blood ratio is correct. 9 to 1 |
| what is the ratio for sodium citrate to blood in the blue tube? | 9 to 1 |
| what are common tests run on the light blue tube? | PT, PTT, D-dimers, fibrinogen ... |
| The majority of the tubes go to what lab department ? | Chemistry |
| what tests are run on the Serum separator / Gold top tube? | lipids, iron, thyroid panel, cholesterol panel, liver function thromboin , glucose |
| What speeds up the clotting process in the Gold tube? | thixotropic separator gel, and a clot activator |
| What lab does the green top tube go to? | it varies |
| What tests are run on the green top tube? | H-pylori, histamine, insulin level, ammonium level, lithium |
| What does Heparin do? | heparin INACTIVATES thrombin |
| what lab do the lavender top tube go to? | Hematology |
| what tests are run on the Lavender top tube ? | CBC, hemogolbin A1c, ESR |
| how does EDTA work? | it binds calcium |
| what lab does Dark blue tube go? | toxicology. follows chain of cusody |
| what test is run on Tan top tube? | lead |
| Orange top tube are for what kinds of tests? | STAT tests and serum testing |
| White top tube is called what? | plasma preparation tubes (PPT) |
| what tests are run on Black top tube? | automated ESR -eliminating manual dilutions of the blood prior to ESR test |
| When using the butterfly needle, and drawing from a light blue tube, what must you do? | use a discard tube first |
| Substances that inhibit or promote clotting are called? | additives |
| Light green tubed test are what type of CHEMISTRY test? | STAT |
| What is the white top tube used for? | molecular diagnostics involving DNA. Think of them as specialized containers with EDTA, and a plasma separator gel |
| what color tops are FDP/FSP tubes? | light blue. dark blue or black top with a label that identifies it |
| what 2 additives are in the FDP tubes? | Thrombin to quickly clot the specimen, and a Fibrinolytic Inhibitor, so that the clot does not break down |
| Why must care be taken when selecting the Yellow sterile top tubes? | because there are 2 different additives but the tubes will be clearly labeled |
| What does the additive SPS in the yellow sterile tube do? | SPS is used for blood culture collections. The SPS acts as an anticoagulant and neutralizes the effect of bacterial growth inhibitors, such as antibiotics. |
| What does the additive ACD in the yellow sterile tube do? | ACD is an additive that maintains red cell viability or growth and is used for cellular studies in blood banks or human leukocyte antigen (HLA) typing. |
Created by:
CcHayes
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