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Venipuncture
Special Topics
| Question | Answer |
|---|---|
| Blood sample should be collected from patients at least ___ hrs postprandial. | 2 |
| After collecting a sample, your blood smears should be made how soon? | Immediately |
| Serum should be removed from contact with cells within ___ mins. | 30-45 min |
| If the sample will not be evaluated within __ hrs, them plasma/serum should be poured off and refrigerated. | 4-6 |
| Blood smear should be stored at what temperature? | Room temp |
| True or false: you can freeze whole blood samples. | False , it causes hemolysis |
| After drawing your samples, you should invert the tube how many times? | 6-10 |
| Venipuncture is preformed with what 2 items/things? | Needle and syringe or Vacutainer system |
| What is the most common needle gauge used for venipuncture? | 22g |
| What are the 2 most important aspects of venipunture technique? | proper restraint and immobilization of the vessel |
| In what region are jugular venipunctures preformed? | Caudal region |
| If your first BD attempt fails, what direction would you try for another? | Cranial (above the prior site) |
| How long do you apply digital pressure to a puncture site? | at least 30 sec |
| What 3 techniques are used to collect a capillary sample? | quicking a nail, lancing the buccal mucosa or nicking the pinna of the ear (most common) |
| What is used to nick the ear vein to gather a sample? | Lancet or 25g needle |
| You must __ the ear before lancing it and them ___ it to collect the sample | warm, milk/massage |
| True or false: Blood gases are taken when a patient is awake. | False, patients are anesthetized |
| True or false: Arterial blood is brighter red than veinous blood. | True |
| The preferred restraint method for arterial puncture is ___________. | Lateral recumbency |
| Catheters are flushed with heparinized saline every __ hrs. | 2 |
| How long should you apply pressure to the medial saphenous after venipuncture? | 1 min |
| What is the finger of choice for occluding the jugular vein? | Thumb |
| What section of the jugular do you start at for blood draws? | caudal 3rd |
| What artery is generally used to to collect acid base and blood gases? | Femoral artery |
| True or false: Blood glucose test can be altered by stress. | True |
| In an emergency situation, what site would you ideally draw blood from? | Jugular |
| True or false. IV drugs are usually given quickly. | False (Slowly) |
| when occluding a vein you should always grasp and roll in which direction? | Laterally (Outwards) |
| Define septicemia. | Blood infection |
| What is the most common tourniquet used? | NYE or penrose |
| What size needle comes with a green cap? | 18g |
| What size needle comes with a pink cap? | 20g |
| What size needle comes with a blue cap? | 22g |
| What size needle comes with a red cap? | 25g |
| What is the most commonly used needle? | 22g |
| What size needle is used for ID injections? | 25g or 27g |
| What do blood chemistries evaluate? | Various blood levels |
| Collecting enough samples to run for 3 tests also allows for what 3 things to occur? | -Dilution -Machine error -Technician error |
| What anticoagulant binds with lead? | Heparin |
| What anticoagulant does not alter cell morphology? | EDTA |
| Isopropryl alcohol does what 3 things when used for venipuncture? | 1-Removes contaminants 2-Improves vein visualization 3-Vasodilation |
| Where should pressure be applied when discussing jugular venipuncture? | thoracic inlet/jugular furrow |
| What collection site mainly used for RBC parasites and at home glucose testing? | Marginal ear |
| What do blood gases measure? | partial pressure of O2 and CO2 in the blood |
| What size needle is placed for arterial catheterization? | 20-22g |
| What are the 2 most commonly used veins used for blood gas analysis? | femoral artery and dorsal metatarsal |
| If an animal is stressed what 2 things could alter blood results? | cortisol and glucose |
| What 2 samples should be obtained before any treatment? | urine and blood |
| True or false. During venipuncture, the site is held off for the entire time. | True |
| True or false. An artery needs to be occluded when collecting a sample. | False |
| True or false. Arterial blood has a lower pressure than venous. | False |
Created by:
brit_2112
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