Point of Care Testing & Laboratory Procedures (Module 7) Flashcards
An adult with normal hearing should be to hear tones at which of the following decibels?
25 decibels
Which of the following is required when obtaining and transporting a drug screening?
chain of custody
Which of the following describes how an abnormal tympanogram appears on a graph when completed?
flat line
Which of the following is a normal range for a hemoglobin A1C?
less than 5.7%
Which of the following can cause a false positive when obtaining a specimen for fecal occult testing?
consuming Vitamin C and iron supplements
How many days prior to skin testing should the patient discontinue antihistamines?
3 days
In which of the following phases of quality assurance are instruments maintained and calibrated?
analytical phases
Which of the following is considered proper technique to avoid contamination during collection of a urine sample?
avoid touching the inside of the container or lid
Which of the following is the amount of time it takes to process a result for a urine pregnancy test?
5 min
Which of the following is required to be included on a urine specimen label prior to sending it to the laboratory?
time when the urine is collected
Which specimen collection performs tests for substances that are sporadically released into the urine?
24-hour urine
Which of the following is the normal range for a total cholesterol?
130 to 200 mg/dL
Which of the following should be included when labeling a patient’s specimen?
collector’s initials
Ishihara color plates are used to screen for what sensory disorder?
color deficiency
Which of the following identifiers should be used to verify the patient before obtaining a specimen for laboratory collection?
name and date of birth
Which of the following is an error that would affect the test results in the preanalytical phase (before the specimen is sent to the lab) of quality assurance?
order of entry error
Which of the following is the number of successful and measured breathing maneuvers that a patient must complete during spirometry testing?
three
Which of the following could cause a specimen to be rejected from the lab?
name on the specimen label does not match the lab requisition
Which of the following is the best instruction to give a patient on how to perform a peak flow test?
“Take the deepest breath possible. Seal your lips around the mouthpiece. Blow out as hard and as fast as you can.”
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
quality control (QC)
action is performed to ensure the reliability of test results by detecting and eliminating error.
quality assurance (QA)
maintenance of a desired level of quality related to a service or piece of equipment.
What are the steps needed for specimen collection?
-collect the specimen at the appropriate time.
-collect the specimen from the site of suspected infection.
-minimize transport time to a reference lab.
Collect the appropriate quantity.
-use the appropriate containers and label them accordingly.
fecal occult blood test (FOBT)
lab test used to check stool samples for hidden (occult) blood.
random urine
can be collected at any time, used for screening purposes.
PATIENT URINATES IN CLEAN, NONSTERILE CONTAINER
first morning specimen
clean-catch midstream
24-hour sample
catheterized collection
Which of the following category of tests is most often offered in a laboratory at a provider’s office?
waived
Which of the following number of antiseptic wipes will be provided for a female patient when instructing them to obtain a clean catch, midstream urine specimen?
three
What are some examples of patient identifiers?
-name
-DOB
-assigned identification number
-phone number
-address
What is the most effective means of preventing the spread of infection?
handwashing
chain of custody
Everyone who handles the specimen, including the patient being tested, must sign the chain of custody form.
The laboratory courier cannot pick up the patient’s urine sample for another 4 hr. Which of the following methods will ensure specimen preservation?
store the urine in the refrigerator
