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Plebotomy
| Question | Answer |
|---|---|
| If a version code appears on a Laboratory requisition, it | indicates that the patient's health card is not the original card issued, contains two letters, is located after the old OHIP number, must be entered on the Lab Requisition. |
| How long is a Lab Requisition valid for | six month |
| How is clotted dblood obtained? | by using a tube without an anticoagulant |
| how is whole blood obtained? | by using a tube contaiing an anticoagulant. |
| The liquid part of blood without the coagulation factors is called | serum |
| the liquid part of blood containing the coagulation factors is called | plasma |
| Blood that contains the blood cells and the liquid part is called | whole blood |
| A random specimen is collected | with no regard for time or meals eaten |
| A fasting speciment is collected | after a patient has not eaten or had anything to drink for a set time period |
| A STAT specimen is collected | and processed immediately |
| A 2 hr p.c. specimen is collected | and processed immediately |
| Which is an aceptable method of patient identification? | Check the wrist band against the requisition, Ask a nurse to positively identify the patient |
| Which is not part of a vacutainer needle? | back, bevel, flanges, shaft, or hub. Answer is flanges. |
| What needle gauge is the smallest in size? | 23 |
| What is the usual length and gauge of needle used on an adult? | 1 1/2 " 21 gauge |
| A needle holder is decontaminated with 1% hypochlorite | at the end of each day, when it comes in contact with blood. |
| The anticoagulant EDTA is contained in a | lavender top tube |
| The anticoagulant potassium oxalate is contained in a? | grey top tube |
| The anticoagulant sodium citrate is contained in a? | light blue top tube |
| The anticoagulant heparin is contained in a | dark blue (green stripe) and green top tube |
| Vacutainer tubes used to collect and separate serum are | mottled/yellow top tube and dark blue (red stripe)tube |
| Tubes which do not contain anticoagulant are | motttled/yellow top tube and dark blue (red stripe) |
| Which tubes are collected for a Vitamin B12 and WBC count? | mottled and lavender tubes |
| Which tubes are collected for a differential and osmotic fragility? | lavender and green |
| which tubes are collected for a GH, FSH, and WBC? | SST and lavender |
| Which tubes are collected for Sodium and Rabies? | SST, RED |
| Which tubes are collected for Electrolytes and a Protime (PT)? | SST and Light blue |
| Which tubes are collected for glucose and RBC? | lavender, and gray |
| Which tubes, in the correct order of draw, are collected for Plt count, Factor VIII, and FBS? | Light blue, lavender, and gray |
| Which test is performed on heparinized blood? | Chromosome Analysis |
| Which test is performed on citrated blood? | Fibrinogen |
| Which test is performed on oxylated blood? | glucose |
| What vein is not used to perform venepuncture? | superficial vein |
| what are the most common venepuncture site | basilic vein, median cubital vein, cephalic vein. |
| Which body site requires a doctor's consent for venepuncture? | foot |
| A tourniquet | increases venous fill |
| What test results are not affected if a patient pumps the fist during venepuncture? | Creatinine |
| What is not considered when selecting a vein for venepuncture? | color |
| A good vein will feel | bouncy and full |
| What chemical is used to cleanse the site for routine venepuncture? | 70% isopropyl alcohol |
| Why is the site allowed to air dry before venepuncture? | to prevent stinging the patient when the venepuncture is done. To prevent hemolysis of the blood specimen. |
| What does it mean to "anchor the vein"? | Using the thumb to hold the skin firmly to prevent movement |
| Why is a vacuum tube filled to exhaustion of the vacuum? | So there will be enough blood collected for the test. To ensure proper dilution of anticoagulant and blood. |
| A lavender, green, grey, and light blue top tube are collected. Correct order is | blue, green, lavender, grey |
| A green, blood culture, dark blue (red stripe) and yellow top are collected, The order is | Blood culture, yellow, dark blue, green. |
| Regarding venepuncture procedure | Dispose the needle into a puncture proof sharp objects container. Never leave the patient before labeling the tubes completely. The two-handed technique is used to minimize needle movement. Additive tubes are gently inverted immediately after collection |
| When performing venepuncture? | The skin is cleansed with a circular motion outwards from intended puncture site |
| When performing venepuncture? | The vein is anchored with the thumb. The needle bevel is pointed up when entering the vein. The tourniquet is removed before withdrawing the needle. |
| Which item is disposed of in regular garbage? | needle cap |
| What might happen if an angle of 10 degee is used when performing a venepuncture? | The needle may enter above the vein. |
| What might happen if an angle of 30 degree is used when performing a venepuncture? | Nothing will happen, this is the corerect angle. |
| If a seated patient faints during a venepuncture you should | remove the needle and attend to the patient |
| A patient with an IV line should have venepuncture done blow the IV site | inferior to |
| If a patient refuses to have a venepuncture done, you | notify the patient's physician |
| After collecting blood in an SST the next step is to | stand the specimen upright for 10 to 15 minutes. |
| A blood specimen in a red top tube is centrifuged. It will separate into | serum andclot |
| What equipment is required to separate serum from a red vacutainer? | Plastic transfer tube, Disposable pipette or Pasteur pipette and Rubber bulb, Latex gloves, Waterproof marker. |
| A blood specimen in a green top tube is centrifuged. It will separate into. | plasma, buffy coat, and red blood cells |
| A blood specimen in a grey top tube is centrifuged. It will separate into | spasma, buffy coat and RBC |
| What information is not put on a transfer tube after separating a gray top for glucose? | serum |
| A blood specimen in a light blue top tube is centrifuged. It will separate into | plasma, buffy coat and RBC |
| Icteric serum or plasma is obtained if a patient. | has liver disease |
| Lipemic serum or plasma is obtained if a patient | recently ate a high fat meal |
| Hemolyzed serum or plasma is obtained if a patient | has anemia |
| Which test result is inaccurate if hemolyzed serum is used? | Electrolyted, AST and ALT, LD, CK. |
| Which technical factor may cause hemolysis of a specimen? | collecting blood from a hematoma |
| Which technical factor may cause hemolysis of a specimen? | Using a 25 gauge needle. Entering the vein without allowing the alcohol to evaporate first. Centrifuging an SST immediately after collection. Leaving on the tourniquet for several minutes. |
| Which blood specimens can be stored formonths or years inthe freezer? | Serum and Plasma |
| Which test(s) is kept on ice until testing is done, and tested STAT? | Blood Gases |
| Which test must have the specimen acidified before testing? | Acid Phosphatase |
| When would a skin puncture be preferred ove a venepuncture? | When the patient is an infant. When a small quantity of blood is required. When an adult patient has an IV in one arm and a cast on the other arm. When a patient is hospitalized with sever burns to the arms and torso. |
| The maximum depth of puncture made should not exceed | 2.0 mm |
| Which microtainer is used to collect a billirubin level? | amber SST |
| The quantity of blood required to fill a red microtainer for skin puncture is? | 750 ul |
| The quantity of blood required to fill a grey microtainer for skin puncture is | 500 ul |
| The quantity of blood required to fill a lavender microtainer for skin puncture is? | between 250 - 500 ul |
| Regarding skin punctures | The procedure is done on an infant or young child not walking. The lateral portion of the middle or ring finger is used for an adult. A warm towel applied to the site will increase blood flow by seven times. |
| Which incorrect technical procedure will cause a hemolyzed skin puncture specimen? | Sharp tapping of a microtainer during collection. Not drying the site after cleansing. Vigorously rotating ananticoagulant containing microtainer. Heavy pressure applied to the puncture site. |
| Which test result is inaccurate if a skin puncture is performed on a baby after violent crying? | WBC Count |
| A bandaid applied to the site may be removed by the infant and aspirate. | True |
| The patient's name is required on the microtainer tube | True |
| The patient's name is required on the vacutainer holding the microtainer tube | False |
| Incorrect technique could cause serious bone infection | True |
| Hemorrhage may not occur if the site is not held firmly until bleeding stop completely. | False |
Created by:
nugentbarbara
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