HPCSA MedTech Board Practice Questions - HPCSA SMLTSA Medical Technology National Board Examination (South Africa) Exam - HPCSA MedTech Board Practice Questions - HPCSA SMLTSA Medical Technology National Board Examination (South Africa) Exam

Question 1

In a clinical chemistry laboratory, a daily quality control run yields a measurement for control material that exceeds the mean by more than 3 standard deviations (+3s). According to Westgard multirules, how should this QC result be interpreted and acted upon?

Interpret as a 1-3s rule violation; reject the analytical run and troubleshoot the assay Interpret as a 1-2s rule violation; report patient results but flag the control Interpret as an R-4s rule violation; recalibrate only the lowest calibrator standard Interpret as a 10-x rule violation; double the patient sample volume and re-run

Correct Answer:

Interpret as a 1-3s rule violation; reject the analytical run and troubleshoot the assay

Question 2

A patient's lipid panel yields the following serum concentrations in SI units: Total Cholesterol = 6.5 mmol/L, Triglycerides = 2.2 mmol/L, and HDL Cholesterol = 1.2 mmol/L. Using the Friedewald equation, what is the calculated LDL Cholesterol value?

4.3 mmol/L 3.8 mmol/L 4.8 mmol/L 5.3 mmol/L

Correct Answer:

4.3 mmol/L

Question 3

A patient presenting with acute metabolic acidosis has the following serum electrolyte values: Sodium = 140 mmol/L, Potassium = 4.5 mmol/L, Chloride = 100 mmol/L, and Bicarbonate (HCO3-) = 15 mmol/L. What is the calculated Serum Anion Gap?

25 mmol/L 15 mmol/L 29.5 mmol/L 10 mmol/L

Correct Answer:

25 mmol/L

Question 4

A medical technologist calculates a patient's serum osmolality using the formula: 2(Na+) + Glucose + Urea (all in mmol/L). If Sodium is 140 mmol/L, Glucose is 10.0 mmol/L, Urea is 5.0 mmol/L, and the measured serum osmolality by freezing point depression is 325 mOsm/kg, what is the osmolal gap?

30 mOsm/kg 10 mOsm/kg 0 mOsm/kg 45 mOsm/kg

Correct Answer:

30 mOsm/kg

Question 5

According to the Beer-Lambert Law governing spectrophotometric analysis, which statement correctly describes the mathematical relationship between absorbance (A) and percent transmittance (%T)?

Absorbance is inversely and logarithmically proportional to percent transmittance: A = 2 - log(%T) Absorbance is directly and linearly proportional to percent transmittance: A = log(%T) / 100 Absorbance is inversely proportional to path length and molar absorptivity: A = c / (e * l) Absorbance increases exponentially as transmittance increases towards 100%

Correct Answer:

Absorbance is inversely and logarithmically proportional to percent transmittance: A = 2 - log(%T)

Question 1

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Prepare with the HPCSA MedTech Board Practice Questions - HPCSA SMLTSA Medical Technology National Board Examination (South Africa) Exam practice quiz. This question bank includes 100 questions covering mmol, patient, serum, blood, and reference. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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HPCSA MedTech Board Practice Questions - HPCSA SMLTSA Medical Technology National Board Examination (South Africa) Exam

This practice set contains 100 questions from the matching question bank and focuses on mmol, patient, serum, blood, and reference. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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HPCSA MedTech Board Practice Questions - HPCSA SMLTSA Medical Technology National Board Examination (South Africa) Exam

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