Practice Test Geeks(CSR) Board Certified Specialist in Renal Nutrition Practice Test
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Research Methods & Evidence-Based Practice Flashcards

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

Read the first 7 Research Methods & Evidence-Based Practice flashcards as text

  1. A renal dietitian reads a study reporting an odds ratio (OR) of 2.4 for hyperphosphatemia among CKD patients consuming processed foods. How should this OR be interpreted?

    Answer: Patients eating processed foods are 2.4 times more likely to develop hyperphosphatemia

    An OR of 2.4 means the odds of hyperphosphatemia are 2.4 times higher in those exposed to the risk factor compared to unexposed individuals.

  2. A cohort study follows 500 CKD patients for 5 years and measures dietary protein intake at baseline only. A key methodological limitation of this approach is:

    Answer: Recall bias from a single baseline measurement may not reflect long-term intake

    A single baseline dietary assessment introduces misclassification error because intake changes over time, potentially attenuating or distorting the observed association.

  3. When performing a PICO question formulation for a clinical question about dietary phosphorus restriction in dialysis patients, which element does 'C' represent?

    Answer: Comparison intervention or control group

    In the PICO framework, C stands for Comparison — the alternative intervention or control condition against which the primary intervention is evaluated.

  4. A dietitian reads a systematic review in which a funnel plot is asymmetrical. What does funnel plot asymmetry typically suggest in a meta-analysis?

    Answer: Possible publication bias or small-study effects

    Funnel plot asymmetry, where small studies cluster on one side, often signals publication bias or small-study effects that can inflate pooled estimates.

  5. In a clinical practice guideline for renal nutrition, a recommendation is rated as 'Grade 2C.' What does this classification most likely indicate?

    Answer: Weak recommendation based on low-quality or very low-quality evidence

    In most grading systems (e.g., KDIGO), Grade 2 means a weak recommendation and C reflects low-quality evidence, together indicating considerable uncertainty.

  6. A renal dietitian is critically appraising an RCT on intradialytic oral nutrition using the CONSORT checklist. Which item on the CONSORT checklist specifically addresses allocation concealment?

    Answer: Method used to implement the random allocation sequence and conceal it until assignment

    CONSORT requires authors to describe the mechanism used to implement the randomization sequence and conceal allocation, ensuring assignment cannot be predicted or manipulated.

  7. A nephrologist asks a renal dietitian to translate the NNT (number needed to treat) of 8 for a dietary intervention that reduced hospitalizations. How should this NNT be communicated to a patient?

    Answer: On average, 8 patients need to follow this diet for 1 additional patient to avoid hospitalization

    NNT represents how many patients need to receive an intervention for one additional patient to experience the beneficial outcome compared to the control.