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Phlebotomy BOC Exam-Questions with Correct Answers/Verified
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Phlebotomy BOC Exam-Questions with Correct Answers/Verified
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Phlebotomy BOC Exam-Questions with Correct Answers/VerifiedHow is ammonia handled after being drawn? - ✔✔it needs to be put on ice
Arteries carry blood away from the heart via _____? - ✔✔Aorta
What carries blood back to heart - ✔✔veins
Baby bilirubin; amber tube, Why? - ✔✔bilirubin breaks down in the presence of light, amber
tube protects specimen from light
best site for baby heel stick - ✔✔medial to big toe and lateral to the line between 4th and
5th toe on the fattiest part of the heel
Best way to break the chain of infection - ✔✔hand hygiene
Blood alcohol; What do you use to cleanse the skin - ✔✔not isopropyl alcohol; povidone-
iodine and benzalkonium chloride
Blood cultures; What is the #1 skin antiseptic? - ✔✔-povidone-iodine, bezalkonium chloride
-due to iodine sensitivities chlorhexidine gluconate/ isopropyl alcohol antiseptic
preparations are being used
blood cultures - ✔✔draw two at 30-60 minutes intervals
capillary blood - ✔✔closer to arterial blood than venous
causes of hematoma - ✔✔probing
going through the vein
using a cotton ball instead of gauze
,Centrifudges - ✔✔check every 3 months, balance with caps on
chain of custody - ✔✔ID, Date, time of sampling handling
clean catch midstream urine - ✔✔best for detecting bacterial infection
cold agglutinins, cryofibrinogen, cryoglobulines - ✔✔keep sample warm; body temperature;
37 degrees Celsius
What if a patient has cold hands? - ✔✔warm them before finger stick
contact isolation - ✔✔use gloves and gown
How often do you do quality controls? - ✔✔usually daily but depends on the manufacturer
crying baby - ✔✔wait one hour to draw
evacuated tube system - ✔✔dispose of both needle and holder
fasting - ✔✔12 hours of no food, water okay
which fingers do you use on a finger stick? - ✔✔3rd and 4th
how often do you change gloves? - ✔✔in between patients
hemolysis - ✔✔--when RBC are damaged or destroyed and the hemoglobin escapes into the
fluid portion of the specimen turning it pink to red depending on extent
--unsatisfactory for electrolytes, esp. potassium, also magnesium and most enzyme tests
, What could happen if you draw too much blood from infants? - ✔✔anemia
How long do you leave iodine on for blood cultures? - ✔✔at least 20 seconds
What if a patient has an IV? - ✔✔draw below IV from a different vein
When do you label tubes? - ✔✔after blood is collected
lancet position - ✔✔perpendicular to fingerprint
lancets - ✔✔control length to prevent bone injury
links in chain of infection - ✔✔
mastectomy patient - ✔✔draw from other arm so lymph nodes don't swell
negligence - ✔✔failure to exercise due care that any reasonable professional would do
i.e.
not disinfecting skin
forgetting to remove tourniquet
leaving a bed rail down
If a tube doesn't have anticoagulant what does it result in? - ✔✔serum
Oral glucose tolerance test (OGTT) - ✔✔evaluates the body's ability to metabolize glucose
by monitoring the patient's tolerance to high levels of glucose without adverse effects;
evaluates the insulin response to a measured dose of glucose by recording glucose levels on
specimens collected at specific time intervals
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