Purple Book Flashcards
(20 cards)
What can cause a false positive when obtaining a specimen for fecal occult blood testing?
consuming vitamin C and iron supplements
what is considered the proper technique to avoid contamination during collection of urine sample
avoid touching the inside of the container/lid
what should be included when labeling a pt specimen
collector’s initial
what specimen collection performs test for substances sporadically released into urine
24 hour urine
what is normal range for hemoglobin A1C
less than 5.7%
what is the normal range for total cholesterol
130-200 mg/dL
what is required to be included on urine specimen label before sending it to lab
time urine was collected
what identifiers should be used to verify pt before obtaining specimen for lab collection
name and DOB
what is required when obtaining and transporting a drug screening
chain of custody
in what phase of quality assurance are instruments maintained and calibrated
analytical phase
ishihara color plates are used to screen for what sensory disorder
color deficiency
what describes how an abnormal tympanogram appears on graph when completed
flat line
when performing a scratch test for allergen testing, which of the following is the amount of time that must pass before checking for a wheal formation
15 min
how many days prior to skin testing should pt discontinue antihistamines
3 days
what is the number of successful and measured breathing maneuvers that a pt must do during a spirometry testing
three
what is the best instruction to give a pt on how to perform a peak flow test
take the deepest breath possible, seal your lips around the mouthpiece, blow out as hard and fast as you can
what could cause a specimen to be rejected from the lab
name on specimen label does not match lab requisition
what is an error that would affect test results in the preanalytical phase (before sent to lab) of quality assurance
order entry error
an adult who has normal hearing should be able to hear tones at
25 decibles
what is the amount of time it takes to process a result for urine pregnancy test
3 min
