NHA Study Guide (pdf)
After 12hrs of fasting and abstention from strenuous exercise, the body is
said to be which state? - ANS basal
A test requisition lists the glucose specimen to be collected as a 2-hour
postprandial. When should it be collected? - ANS Two hours after patient
eats
Which test is used to diagnose hypoglycemia? - ANS 5 hour oral GTT
What test is used to diagnose gestational diabetes? - ANS 1 hour GTT
In an oral GTT, how much time may the patient take to drink the glucose
solution? - ANS 5 minutes
Which of the following shows significant diurnal variation? - ANS cortisol
Which of the following is a therapeutic drug that might be measured? -
ANS dilantin
What is the medical term for fainting? - ANS syncope
When you are unable to locate a vein after thoroughly examining a patient's
arm, what step should be taken next ? - ANS examine the other arm for a
vein
a patient has a seizure while you are performing a venipuncture. What
should you do? - ANS remove the tourniquet and needle immediately,
apply pressure, and call the nurse for help
when collecting blood from a vein in the back of the hand, where should the
tourniquet be placed? - ANS Just above the wrist
,which of the following tests is most seriously affected by hemolysis? - ANS
Potassium
During a prolonged hospitalization, a patient requiring many laboratory
tests may develop what condition as a result of multiple blood samples
being drawn? - ANS Anemia
which of the following may cause a hematoma? - ANS Going through the
back side of the vein when inserting the needle
all of the following are reasons for specimen rejection except for what? -
ANS collection from the wrong vein
Basal state - ANS refer to the bod's state after 8 to 12 hours of fasting
timed specimens are useful in monitoring - ANS cardiac enzymes
Patient preparation includes verifying patient age on the requisition - ANS
because lab reference ranges may be set based on age
what is the effect of dehydration on the patients test result? - ANS
Hemoconcentration
Blood tested from patients who have been in a supine position for an
extended period of time may exhibit what type of shift in certain blood test
results - ANS decreased
which of the following is not pre-analytical variable - ANS reporting of test
result
collections for which department require a special patient identification
system in addition to the hospital ID bracelet? - ANS Blood Bank
, a large amount of bleeding into the tissues surrounding a puncture site (i.e.
in a patient who takes anticoagulant medication) can cause what condition?
- ANS compartment syndrome
what is the term used to describe a vein that is hardened due to repeated
venipuncture, chemotherapy, or disease? - ANS sclerosed
If an IV is in place and there are no other accessible sites, where should
the blood specimen be collected? - ANS Distal to the IV
If the antecubital space is inaccessible when venipuncture is required, what
is the next best site for specimen collection? - ANS Doral hand veins
If the bevel is stuck to the wall of the vein, what should be done? - ANS
slightly rotate the needle
which of the following veins should be avoided to reduce chances of nerve
damage? - ANS basilic
which antiseptic is not recommended for children under the age 2? - ANS
Benzalkonium chloride
Which blood parameter is a measure of carbon dioxide levels in the blood?
- ANS PCO2
what parameter is a measure of the percent of oxygen bund to
hemoglobin? - ANS PO2
which test measures the level of bicarbonate in the blood? - ANS HCO3-
Where is the radial artery located? - ANS Thumb side of wrist
A blood gas sample on ice cannot be used test for what analyze sue to the
effect of lower temperature on the sample? - ANS Potassium
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