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Free Practice Quiz Question List

2 Laboratory and Specimen Tests Online Quiz Questions

Use this free practice quiz with 20 questions to review 2 Laboratory and Specimen Tests, test your knowledge, and prepare for your next test or exam.

20 questions
01
Choose one
1 point

A patient is unsure whether to fast before a scheduled blood draw. What is the best advice?

  1. A

    Fast before every blood draw to avoid affecting results.

  2. B

    Check the test-specific instructions or contact the ordering clinician or laboratory.

  3. C

    Skip prescribed medicines until after the blood draw.

  4. D

    Drink no water during the fasting period.

02
True or false
1 point

True or false: A1C generally does not require fasting.

  1. A

    True

  2. B

    False

03
Written response
1 point

A patient needs to provide lower-airway mucus, rather than saliva, for a culture. What is this specimen called?

04
Choose one
1 point

A clinician orders a complete blood count (CBC). Which set of measurements should the patient expect the test to include?

  1. A

    Only glucose and electrolytes

  2. B

    Only liver-associated enzymes and bilirubin

  3. C

    Red cells, hemoglobin, hematocrit, white cells, and platelets

  4. D

    Only bacteria and yeast in a specimen

05
Fill in the blank
1 point

In a clean-catch collection, the patient begins urinating into the toilet and then collects the urine in the cup.

06
True or false
1 point

True or false: If a laboratory result is within its reference range, disease is always ruled out.

  1. A

    True

  2. B

    False

07
Written response
1 point

A patient misses or spills a specimen during a timed urine collection. Which healthcare resource should they contact for instructions?

08
Choose one
1 point

A blood culture is positive, but the patient’s symptoms do not clearly suggest infection. How should the result be interpreted?

  1. A

    Consider the clinical picture and other cultures because contamination is possible.

  2. B

    Conclude that bloodstream infection is certain.

  3. C

    Ignore the result if the patient has no symptoms.

  4. D

    Repeat the culture only after stopping antimicrobial therapy.

09
Fill in the blank
1 point

A positive stool occult-blood test detects blood but does not, by itself, establish its .

10
Choose one
1 point

A patient’s urine culture reports “no growth.” Which interpretation is most appropriate?

  1. A

    It confirms a urinary infection.

  2. B

    It proves that the specimen was contaminated.

  3. C

    It means no further interpretation is ever needed.

  4. D

    It is generally a normal culture result.

11
Choose all
1 point

A patient has a laboratory result marked outside the reference range. Select all factors that should be considered before deciding what it means.

  1. A

    Compare the result with the units and reference interval printed on that report.

  2. B

    Assume every result marked high or low means the same thing across laboratories.

  3. C

    Consider symptoms and medical history alongside the result.

  4. D

    Consider whether preparation, medicines, hydration, recent activity, menstruation, or collection quality could have affected it.

12
Choose all
1 point

Select all statements that accurately describe a comprehensive metabolic panel (CMP).

  1. A

    A CMP includes proteins, liver-associated enzymes, and bilirubin.

  2. B

    A CMP identifies the cause of any abnormal result by itself.

  3. C

    A CMP includes kidney-related measures such as BUN and creatinine.

  4. D

    A CMP measures only red cells and platelets.

13
Open ended
1 point

After a venipuncture, a patient notices some soreness and asks what to do. Explain appropriate routine aftercare and identify symptoms that should be reported promptly.

14
Choose one
1 point

Which statement about preparation for a complete blood count (CBC) is correct?

  1. A

    A CBC usually needs no special preparation unless another test requires it.

  2. B

    Fasting is required before every CBC.

  3. C

    Stop all medicines and supplements before a CBC.

  4. D

    Avoid drinking water before a CBC.

15
True or false
1 point

A laboratory result outside the reference range establishes a diagnosis by itself.

  1. A

    True

  2. B

    False

16
Choose one
1 point

A patient is collecting a stool specimen for testing. Which instruction best protects the specimen from contamination?

  1. A

    Collect it from toilet water and transfer it to the kit

  2. B

    Use the provided kit or a clean, dry container and avoid mixing it with urine or toilet water

  3. C

    Mix it with urine so the laboratory can compare the specimens

  4. D

    Collect it in any available container, even if it is wet

17
Choose one
1 point

Which statement correctly distinguishes a blood glucose result from an A1C result?

  1. A

    Both measure only the blood sugar level at the moment of collection

  2. B

    Glucose estimates three-month average blood sugar; A1C measures only the current level

  3. C

    Glucose reflects the level at collection; A1C estimates an average over roughly three months

  4. D

    A1C measures kidney function, while glucose measures liver function

18
Written response
1 point

After breathing deeply, what should a patient do to collect sputum in the sterile container?

19
Choose one
1 point

What should a patient generally save during a timed urine collection?

  1. A

    Save every void during the specified collection period.

  2. B

    Save only the first and last voids of the period.

  3. C

    Save only voids produced during waking hours.

  4. D

    Save a single sample at the end of the period.

20
Written response
1 point

A clean-catch midstream urine sample helps reduce contamination by organisms from which two areas?