Locally Employed Laboratory Staff CME 2025 Quiz - Missed Questions

Which statement regarding a lipid panel is true?

• Results cannot be reported if the patient is not fasting.

• A lipemic sample indicates a patient was not fasting.

• Since lipemia is caused by lipoprotein particles, results for non-lipid analytes are not affected.

• Centrifugation can be used to remove lipemia from a sample.

Which collection tube additive is correctly described?

• EDTA chelates iron and prevents coagulation.

• Heparin inhibits Factor II action and fibrinogen formation.

• Sodium fluoride disables the glucose transporter in RBC.

• Sodium citrate replaces Ca++ ions with Na+ ions to stop blood from clotting.

Identify the cell in this picture.

• Atypical Lymphocyte

• Blast

• Promyelocyte

• Lymphocyte

• Monocyte

How many samples are necessary when conducting the Diabetes Mellitus Diagnostic Test?

• 3 samples: At 0 hour (fasting), 1, and 2 hour(s)

• 1 sample: At 2 hours

• 2 samples: At 0 hour (fasting) and 2 hours

• 2 samples: At 1 and 2 hour(s)

What of the following would not be associated with this platelet histogram?

• Thrombotic thrombocytopenic purpura (TTP)

• Pre-analytical errors such as improper sample handling or traumatic collection

• Cold agglutinins

• EDTA antibodies

How many grams of glucose should be in the glucola for the One Step Gestational Diabetes Diagnostic Test? Type a number only.

Which of the following is not an example of a best practice requirement by in vitro diagnostics manufacturers?

• Instruments should have internal quality controls like background checks or optical calibration.

• Periodic preventative maintenance should occur on a set schedule.

• Deviations from the manual should be validated with documentation by the performing laboratory.

• Peer-to-peer comparisons or some other external quality assessment program needs to occur.

Which of the following is a common cause of cold agglutinin syndrome?

• A genetic predisposition

• Due to infection (e.g., Mycoplasma pneumonia)

• A direct injury to the red blood cells

• A high level of vitamin K

Which of the following statements is true?

• Schistosoma spp. will be difficult to observe so I need to use high power magnification.

• If Taenia spp. cysts are identified and the patient ate beef yesterday, I can result out Tania saginata.

• Sputum can be an acceptable sample for parasitology.

• Pinworm infections can only be identified using the tape test.

Which pair of dipstick/microscopic urinalysis results are discordant and require follow up for potential quality assurance issues?

• Blood/hemoglobin 3+/250 erythrocytes/μL – 0 RBC/HPF

• Protein 2+/100mg/dL – 20 renal tubular cell/HPF

• pH 8.0 – Many calcium oxalate crystals

• Nitrites NEG – 23 WBC/HPF