Practice Test GeeksPEBC - Pharmacy Examining Board of Canada Practice Test
← All PEBC Flashcard Decks

Diagnostic Procedures Flashcards

7 cards from real PEBC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Diagnostic Procedures flashcards as text

  1. A patient's serum creatinine is 180 µmol/L and eGFR is 28 mL/min/1.73m². Which CKD stage does this represent?

    Answer: Stage 4 (severe decrease)

    An eGFR of 15–29 mL/min/1.73m² corresponds to CKD Stage 4 (severe decrease in kidney function).

  2. Which laboratory finding is most consistent with iron-deficiency anemia?

    Answer: Low serum ferritin, elevated TIBC

    Iron-deficiency anemia is characterized by low serum ferritin (depleted stores) and elevated TIBC (transferrin unsaturated).

  3. A pharmacist reviews a patient's ECG and notes a prolonged QTc of 510 ms. Which drug interaction is most likely responsible?

    Answer: Azithromycin + haloperidol

    Both azithromycin and haloperidol independently prolong the QTc interval, and their combination significantly increases the risk of torsades de pointes.

  4. A patient's urine dipstick shows 3+ protein and 2+ blood. The most appropriate next diagnostic step is:

    Answer: Urine microscopy and ACR (albumin-to-creatinine ratio)

    Persistent proteinuria and hematuria on dipstick require urine microscopy and ACR to quantify proteinuria and evaluate for glomerular pathology.

  5. Which INR range is the therapeutic target for a patient with a mechanical heart valve receiving warfarin?

    Answer: 2.5–3.5

    Mechanical heart valves generally require a higher INR target of 2.5–3.5 to prevent thromboembolism.

  6. A fasting lipid panel shows LDL-C 4.8 mmol/L, HDL-C 0.9 mmol/L, and TG 3.2 mmol/L. Which calculated value is unreliable?

    Answer: LDL-C via Friedewald equation

    The Friedewald equation (LDL-C = TC − HDL − TG/2.2) is inaccurate when triglycerides exceed 4.5 mmol/L, but is also less reliable at TG > 2.3 mmol/L; direct LDL measurement should be used when TG are elevated.

  7. Which test is used to diagnose H. pylori infection in a patient currently taking a proton pump inhibitor?

    Answer: Stool antigen test after 2-week PPI washout

    PPIs suppress H. pylori activity and cause false-negative urea breath and stool antigen tests; a 2-week PPI washout before stool antigen testing improves accuracy.