NHA Module 7- Point of Care Testing and Laboratory Procedures

Which of the following identifiers should be used to verify the patient before obtaining a specimen for laboratory collection?

Name and date of birth

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 the patient discontinue antihistamines?

3 days

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 entry error

Which specimen collection performs tests for substances that are sporadically released into the urine?

24- hour urine

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 blood testing?

Consuming vitamin c and iron supplements

Which of the following is required to be included on a urine specimen label prior to sending it to the laboratory?

Time the urine was collected.

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 describes how an abnormal tympanogram appears on a graph when completed?

A flat line

An adult with normal hearing should be able to hear tones at which of the following decibels?

25 decibels

Ishihara color plates are used to screen for what sensory disorder?

Color deficiency

In which of the following phases of quality assurance are instruments maintained and calibrated?

Analytical phase

Which of the following is required when obtaining and transporting a drug screening?

Chain of custody

Which of the following should be included when labeling a patient's specimen?

Collector's initials

Which of the following is the normal range for a total cholesterol?

130 to 200 mg/dL

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 the lid.

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."

Which of the following could cause a specimen to be rejected from the lab?

The name on the specimen label does not match the lab requisition.

Which of the following is the amount of time it takes to process a result for a urine pregnancy test?

5 min