100+ Free HPCSA MedTech Board Practice Questions

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2026 Statistics

Key Facts: HPCSA MedTech Board Exam

50%

Written Theory Pass Mark

HPCSA PBMT / SMLTSA Board Examination Regulations

R3,500-R4,500

Board Examination Fee

SMLTSA Gazetted Examination Fee Schedule

3 Hours

Theory Exam Duration

180-minute written theory paper time limit

5 Domains

Syllabus Disciplines

Chemistry, Haematology, Microbiology, Transfusion & Histopathology

ISO 15189

Quality Standard

Medical Laboratories Quality Management Standard

SANS 10248

Healthcare Waste Standard

South African National Standard for Sharps & Bio-hazard Waste

The HPCSA / SMLTSA Medical Technology Board Examination is a 3-hour physical written examination and practical laboratory assessment required for medical laboratory registration in South Africa. Candidates must score at least 50% on the written theory paper and pass the practical examination. Major syllabus weightings include Clinical Chemistry (~25%), Haematology (~25%), Microbiology (~20%), Blood Transfusion (~15%), and Histopathology/Ethics (~15%). Gazetted exam fees range from R3,500 to R4,500. These 100 MCQs provide an English study adaptation to master the exam's clinical laboratory reasoning.

Sample HPCSA MedTech Board Practice Questions

Try these sample questions to test your HPCSA MedTech Board exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In 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?

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

B.Interpret as a 1-2s rule violation; report patient results but flag the control

C.Interpret as an R-4s rule violation; recalibrate only the lowest calibrator standard

D.Interpret as a 10-x rule violation; double the patient sample volume and re-run

Explanation: A single control result exceeding ±3s from the mean triggers the 1-3s Westgard rule. This is a rejection rule sensitive to random error (or large systematic error). The medical technologist must reject the analytical run, withhold patient results, investigate the root cause, and re-analyze after corrective action.

2A 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?

A.4.3 mmol/L

B.3.8 mmol/L

C.4.8 mmol/L

D.5.3 mmol/L

Explanation: In SI units (mmol/L), the Friedewald equation is: LDL-C = Total Cholesterol - HDL-C - (Triglycerides / 2.2). Substituting the values: LDL-C = 6.5 - 1.2 - (2.2 / 2.2) = 6.5 - 1.2 - 1.0 = 4.3 mmol/L.

3A 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?

A.25 mmol/L

B.15 mmol/L

C.29.5 mmol/L

D.10 mmol/L

Explanation: The standard Serum Anion Gap formula is: Na+ - (Cl- + HCO3-). Substituting the given serum electrolyte concentrations: Anion Gap = 140 - (100 + 15) = 140 - 115 = 25 mmol/L. This represents a significantly elevated anion gap (normal reference range: 8–16 mmol/L), indicative of high anion gap metabolic acidosis (e.g., ketoacidosis or lactic acidosis).

4A 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?

A.30 mOsm/kg

B.10 mOsm/kg

C.0 mOsm/kg

D.45 mOsm/kg

Explanation: Calculated osmolality = 2(140) + 10.0 + 5.0 = 280 + 10 + 5 = 295 mOsm/kg. The Osmolal Gap = Measured Osmolality - Calculated Osmolality = 325 - 295 = 30 mOsm/kg. An osmolal gap greater than 10 mOsm/kg indicates the presence of unmeasured osmotically active substances such as ethanol, methanol, or ethylene glycol.

5According to the Beer-Lambert Law governing spectrophotometric analysis, which statement correctly describes the mathematical relationship between absorbance (A) and percent transmittance (%T)?

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

B.Absorbance is directly and linearly proportional to percent transmittance: A = log(%T) / 100

C.Absorbance is inversely proportional to path length and molar absorptivity: A = c / (e * l)

D.Absorbance increases exponentially as transmittance increases towards 100%

Explanation: Absorbance and percent transmittance are inversely and logarithmically related: A = -log(T) = -log(%T / 100) = 2 - log(%T). As concentration and absorbance increase, light transmission through the solution decreases logarithmically.

6In evaluating suspected myocardial infarction (MI), how do the serum kinetic patterns of Cardiac Troponin I (cTnI) and Creatine Kinase-MB (CK-MB) compare over time post-event?

A.cTnI remains elevated in serum for 7–10 days post-MI, whereas CK-MB returns to baseline within 48–72 hours

B.CK-MB remains elevated for 14 days, whereas cTnI peaks within 2 hours and returns to baseline in 12 hours

C.Both cTnI and CK-MB peak at 48 hours and return to baseline simultaneously after 10 days

D.CK-MB is completely specific to cardiac tissue, whereas cTnI is elevated primarily in skeletal muscle injury

Explanation: Cardiac Troponin I (cTnI) begins rising 4–6 hours after myocardial injury, peaks around 12–24 hours, and stays elevated for 7–10 days (allowing late diagnosis). CK-MB also rises at 4–6 hours and peaks at 18–24 hours, but rapidly clears back to baseline within 48–72 hours, making CK-MB useful for detecting re-infarction.

7A medical technologist measuring glycated hemoglobin (HbA1c) by ion-exchange High-Performance Liquid Chromatography (HPLC) notices an unusual peak interfering with the HbA1c fraction. Which clinical condition or hemoglobin variant is the most likely cause of this analytical interference?

A.Presence of a heterozygous hemoglobinopathy such as HbS or HbC

B.Severe iron deficiency anemia with low ferritin levels

C.Acute hypoglycemia secondary to insulin overdose

D.Elevated serum conjugated bilirubin above 50 µmol/L

Explanation: Hemoglobin variants (such as HbS, HbC, HbE, or elevated HbF) alter the charge or structure of hemoglobin molecules, causing co-elution or abnormal peak resolution on cation-exchange HPLC columns, leading to falsely elevated or depressed HbA1c results.

8An arterial blood gas (ABG) sample drawn on room air yields the following results: pH = 7.22 (reference: 7.35–7.45), PaCO2 = 60 mmHg (reference: 35–45 mmHg), and HCO3- = 25 mmol/L (reference: 22–26 mmol/L). How should this acid-base status be classified?

A.Uncompensated Respiratory Acidosis

B.Fully compensated Metabolic Acidosis

C.Partially compensated Respiratory Alkalosis

D.Uncompensated Metabolic Alkalosis

Explanation: The pH is decreased (<7.35), indicating acidosis. The PaCO2 is elevated (>45 mmHg), indicating a respiratory cause. The HCO3- is within normal limits (25 mmol/L), showing that renal compensation has not yet occurred. Therefore, this is uncompensated respiratory acidosis.

9In the classical Jaffe reaction for serum creatinine determination, what reagent reacts with creatinine under alkaline conditions, and which substance causes positive analytical interference?

A.Picric acid forming a red-orange chromogen; acetoacetate and cephalosporins cause positive interference

B.Diacetyl monoxime forming a yellow product; urea causes positive interference

C.Sodium nitroprusside forming a purple complex; glucose causes positive interference

D.Phosphotungstic acid forming tungsten blue; uric acid causes positive interference

Explanation: The Jaffe reaction involves creatinine reacting with alkaline picrate to form a red-orange Janovski complex measured spectrophotometrically at 500–520 nm. Non-creatinine chromogens such as acetoacetate, pyruvate, ascorbic acid, and cephalosporins also react with alkaline picrate, producing positive bias (interfering chromogens). Kinetic Jaffe methods reduce this interference.

10A patient presenting with jaundice has serum enzyme results showing Alkaline Phosphatase (ALP) = 650 U/L (reference: 40–130 U/L) and Gamma-Glutamyl Transferase (GGT) = 480 U/L (reference: 10–50 U/L), while ALT and AST are only mildly elevated (1.5x upper limit of normal). What clinical pattern does this enzyme profile indicate?

A.Cholestatic or obstructive liver disease (biliary obstruction)

B.Acute hepatocellular necrosis (acute viral hepatitis)

C.Isolated skeletal muscle injury or rhabdomyolysis

D.Hemolytic anemia with pre-hepatic hyperbilirubinemia

Explanation: Marked concomitant elevation of ALP and GGT (greater than 3-4x upper limit of normal) with modest aminotransferase (ALT/AST) elevation is classic for cholestasis or extrahepatic biliary obstruction (e.g., gallstones, pancreatic mass). GGT confirms that the ALP elevation originates from the biliary tract rather than bone.

About the HPCSA MedTech Board Exam

The HPCSA / SMLTSA Medical Technology National Board Examination is the mandatory licensing assessment for medical laboratory professionals seeking professional registration in South Africa. Administered by the Society for Medical Laboratory Technologists of South Africa (SMLTSA) under a Memorandum of Understanding with the HPCSA Professional Board for Medical Technology (PBMT), the exam evaluates applied laboratory competence across five key domains: Clinical Chemistry and Instrumentation (~25%), Haematology and Haemostasis (~25%), Medical Microbiology and Parasitology (~20%), Immunohaematology and Transfusion Medicine (~15%), and Histopathology, Cytology, and Laboratory Ethics/Safety (~15%). Candidates must achieve a 50% pass mark on the written theory paper and pass the practical laboratory assessment. This 100-question practice test provides high-yield multiple-choice questions with comprehensive rationales to prepare candidates for the clinical, analytical, and ethical concepts tested on the national examination.

Questions

100 scored questions

Time Limit

3 hours (180 minutes)

Passing Score

50% pass mark (theory paper)

Exam Fee

R3,500.00 – R4,500.00 (varies by category) (Society for Medical Laboratory Technologists of South Africa (SMLTSA) on behalf of HPCSA PBMT)

HPCSA MedTech Board Exam Content Outline

~25%

Clinical Chemistry & Instrumentation

In-depth knowledge of analytical principles, quality management, and clinical interpretation in clinical chemistry. Quality control: Westgard multirules (1-2s warning, 1-3s, 2-2s, R-4s, 4-1s, 10-x rejection rules), Levey-Jennings charts, systematic vs random error troubleshooting. Analytical instrumentation: Beer-Lambert law, spectrophotometry, ion-selective electrodes (valinomycin for K+), automated analyzers, blood gas analyzers (Severinghaus PCO2, Clark PO2 electrodes). Calculations: Anion Gap, Friedewald LDL equation, serum osmolality and osmolal gap, creatinine clearance, calcium correction for albumin. Clinical enzymology and endocrinology: cardiac biomarkers (Troponin I vs CK-MB kinetics), liver function panel (ALP and GGT elevation in cholestasis vs ALT/AST in necrosis), thyroid function tests (primary vs secondary hypothyroidism), glucose metabolism (HbA1c HPLC interference, ADA diabetes criteria), therapeutic drug monitoring (tDM trough vs peak levels), and CSF chemical analysis.

~25%

Haematology & Haemostasis

Principles of cell counting, red and white cell morphology, hematological malignancies, and coagulation disorders. Cell counting & indices: Coulter electrical impedance principle, MCV, MCH, MCHC calculation, reticulocyte count and corrected reticulocyte count (CRC). Erythrocyte morphology & pathology: Howell-Jolly bodies (DNA, post-splenectomy), Heinz bodies (denatured Hb, G6PD, supravital stain), hypersegmented neutrophils (megaloblastic anemia), sickle cell mutation (beta-6 Glu->Val) and solubility test, iron deficiency vs chronic disease ferritin/TIBC profiles, osmotic fragility in hereditary spherocytosis. Hematological neoplasms: Chronic Myeloid Leukemia (CML t(9;22) Philadelphia chromosome, low LAP score), Acute Myeloid Leukemia (AML Auer rods, MPO), Acute Lymphoblastic Leukemia (ALL TdT positivity), Multiple Myeloma (rouleaux formation, M-spike), and reactive leukemoid reactions. Hemostasis & thrombosis: Prothrombin Time (PT/INR extrinsic pathway, warfarin monitoring), APTT (intrinsic pathway, heparin monitoring, contact activators), Thrombin Time (TT), 1:1 mixing studies (factor deficiency vs lupus anticoagulant inhibitor), consumptive coagulopathies (DIC triad), HIT Type II (anti-PF4/heparin IgG), TTP (ADAMTS13 deficiency), and platelet aggregometry (Glanzmann vs Bernard-Soulier).

~20%

Medical Microbiology & Parasitology

Diagnostic bacteriology, antimicrobial resistance testing, mycology, and medical parasitology. Staining & microscopy: Gram stain sequence and iodine mordant mechanism, Ziehl-Neelsen acid-fast stain (carbolfuchsin, mycolic acid, M. tuberculosis). Culture media & identification: MacConkey agar (lactose fermentation, E. coli), XLD agar (Salmonella H2S black centers vs Shigella), Thayer-Martin selective medium for Neisseria gonorrhoeae (glucose utilization only), Löwenstein-Jensen (LJ) medium for M. tuberculosis (rough buff colonies). Pathogen differentiation: Staphylococcus aureus (catalase +, coagulase +) vs CoNS, Streptococcus pneumoniae (optochin susceptible, bile soluble), S. pyogenes (Group A, bacitracin susceptible, PYR +), Pseudomonas aeruginosa (oxidase +, pyocyanin pigment). Antimicrobial susceptibility testing: Kirby-Bauer disk diffusion (Mueller-Hinton agar 4mm depth, 0.5 McFarland standard), MIC vs MBC concepts, MRSA mecA gene / PBP2a low affinity, ESBL detection (clavulanic acid synergy). Mycology & parasitology: Cryptococcus neoformans (India ink capsule, mucicarmine), Candida albicans (germ tube test), Clostridioides difficile toxins A/B, Plasmodium falciparum thin smear (ring forms, crescent gametocytes), Entamoeba histolytica (4-nucleated cyst, erythrophagocytosis), and Giardia lamblia (pear-shaped trophozoite, falling-leaf motility).

~15%

Immunohaematology & Transfusion Medicine

Blood group genetics, pre-transfusion compatibility testing, transfusion safety, and donor processing. Blood grouping: ABO forward (cell) and reverse (serum) grouping, RhD phenotyping, Weak D (Du) IAT testing in donors. Coombs testing: Direct Antiglobulin Test (DAT, in vivo RBC sensitization in HDFN/AIHA) and Indirect Antiglobulin Test (IAT, in vitro antibody screening with AHG reagent). Pre-transfusion testing: Major crossmatch (recipient serum + donor RBCs), donor unit selection, Bombay phenotype (hh, anti-H antibody, requires Bombay blood). Transfusion reactions: Acute Hemolytic Transfusion Reaction (AHTR, ABO incompatibility, intravascular lysis, hemoglobinuria), TRALI (donor anti-HLA antibodies, non-cardiogenic pulmonary edema), FNHTR (prevented by pre-storage leukoreduction). HDFN & blood components: maternal anti-D IgG, RhIG (RhoGAM) prophylaxis at 28 weeks and within 72h post-delivery, Kleihauer-Betke test calculation for fetomaternal hemorrhage, blood component storage (CPDA-1 RBCs 1-6°C for 35 days, Platelets 20-24°C with agitation for 5 days, FFP <= -18°C for 1 year, Cryoprecipitate fibrinogen/Factor VIII/vWF), and massive transfusion citrate hypocalcemia.

~15%

Histopathology, Cytology & Laboratory Ethics/Safety

Tissue preparation, microtomy, special staining, cervical cytology, biosafety, and regulatory compliance. Histotechnology: 10% Neutral Buffered Formalin fixation mechanism (methylene cross-linking), automated tissue processing sequence (Fixation -> Dehydration alcohols -> Clearing Xylene -> Infiltration Paraffin), microtomy chatter artifact (loose knife/clamp). Staining principles: Hematoxylin and Eosin (H&E basic/acidic dye binding), Periodic Acid-Schiff (PAS for glycogen/fungi/basement membranes), Masson's Trichrome (collagen blue/green, muscle red). Cytology: Pap smear ethanol fixation (preventing air-drying artifact), Bethesda System for Cervical Cytology (LSIL koilocytes with perinuclear halos vs HSIL dysplastic cells). Laboratory safety & ethics: Biosafety Levels (BSL-2 for bloodborne pathogens), Class II BSC laminar airflow (70% recirculated, 30% HEPA exhaust), HPCSA ethical rules (confidentiality, disclosure rules under National Health Act), ISO 15189 quality standards (IQC out-of-control protocol, error reporting), SANS 10248 healthcare risk waste management (puncture-resistant yellow sharps containers), and solvent waste disposal (xylene incineration).

How to Pass the HPCSA MedTech Board Exam

What You Need to Know

Passing score: 50% pass mark (theory paper)
Exam length: 100 questions
Time limit: 3 hours (180 minutes)
Exam fee: R3,500.00 – R4,500.00 (varies by category)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

HPCSA MedTech Board Study Tips from Top Performers

1Master Clinical Calculations: Be prepared for multi-step calculations including Anion Gap, Friedewald LDL (using 2.2 for mmol/L), serum osmolality, creatinine clearance, corrected reticulocyte count (CRC), and Kleihauer-Betke RhIG dosage calculations.

2Understand Quality Control & Westgard Rules: Know how to interpret 1-2s (warning), 1-3s (random error rejection), 2-2s (systematic error rejection), and R-4s (random error) Westgard multirules and ISO 15189 out-of-control protocols.

3Differentiate Coagulation & Platelet Pathways: Memorize the distinctions between PT/INR (extrinsic/common, Warfarin), APTT (intrinsic/common, Heparin), Thrombin Time (fibrinogen cleavage, heparin sensitive), 1:1 mixing studies (deficiency vs inhibitor), and platelet aggregometry (Glanzmann vs Bernard-Soulier).

4Focus on Staining & Microbiology Media: Know the exact chemical steps for Gram stain (iodine mordant) and Ziehl-Neelsen acid-fast stain (carbolfuchsin, mycolic acid), as well as selective media indicators for MacConkey (lactose), XLD (Salmonella H2S), and Thayer-Martin (Neisseria).

5Review Transfusion Safety & Reaction Mechanics: Study ABO forward/reverse grouping, Weak D IAT testing, DAT vs IAT, AHTR (intravascular IgM lysis), TRALI (donor anti-HLA/HNA antibodies), pre-storage leukoreduction benefits, and RhIG prophylaxis (28 weeks and within 72h post-delivery).

Frequently Asked Questions

What is the passing score for the HPCSA / SMLTSA Medical Technology board exam?

Candidates must achieve a minimum score of 50% on the written theory examination and pass the practical laboratory assessment. Both components must be passed to qualify for HPCSA registration.

What are the official HPCSA / SMLTSA examination fees for 2026?

Examination fees vary by category (Medical Technologist, Medical Technician, Laboratory Assistant) and range between R3,500.00 and R4,500.00 per sitting. Fees are payable to SMLTSA prior to the application closing date.

How often is the HPCSA Medical Technology board exam written?

The SMLTSA administers board examinations twice annually, typically in August/September (theory and screening exams) and October (practical and theory sittings). Check smltsa.org.za for exact dates and deadlines.

What is the format of the official HPCSA Medical Technology examination?

The examination comprises two main parts: a written theory paper (100–150 questions covering all laboratory disciplines) and an Objective Structured Clinical/Practical Examination (OSCE / practical laboratory bench test). These 100 online MCQs serve as an English-language study adaptation covering all required syllabus topics.

What happens if a candidate fails the Medical Technology board exam?

Candidates who fail either the written or practical component may re-apply for a subsequent examination sitting by submitting a new application form and paying the prescribed fee.

Which laboratory disciplines are tested on the HPCSA Medical Technology examination?

The exam covers five core disciplines: Clinical Chemistry (~25%), Haematology and Haemostasis (~25%), Medical Microbiology and Parasitology (~20%), Immunohaematology and Transfusion Medicine (~15%), and Histopathology, Cytology, and Laboratory Ethics/Safety (~15%).

What quality standard governs HPCSA-accredited medical laboratories in South Africa?

Medical laboratories in South Africa operate under the ISO 15189 quality standard for medical laboratories, along with HPCSA ethical rules, National Health Act 61 of 2003 regulations, and SANS 10248 healthcare risk waste standards.