CSR Board Certified Specialist in Renal Nutrition Practice Test PDF (Free Printable 2026 October)
✏️ Pass your CSR Board Certified Specialist in Renal exam on the first attempt. Practice questions with detailed answer explanations, hints, and instant
CSR Board Certified Specialist in Renal Nutrition Practice Test PDF
The CSR credential — Board Certified Specialist in Renal Nutrition — is awarded by the Commission on Dietetic Registration (CDR) to registered dietitians who demonstrate advanced expertise in kidney disease nutrition. The exam spans the full continuum of renal care: CKD staging and progression, hemodialysis and peritoneal dialysis nutrition protocols, acute kidney injury management, renal transplant dietary modifications, and the complex electrolyte and fluid restrictions unique to patients with impaired kidney function.
Our free CSR practice test PDF is printable, portable, and covers all major exam domains — from biochemical marker interpretation to phosphate binder selection, potassium restriction strategies, and protein-energy wasting assessment. Download and study on your own schedule.
What the CSR Exam Covers
CKD Staging and Complications
The CSR exam requires strong knowledge of GFR-based CKD staging (Stages 1 through 5, including Stage 5D for dialysis patients), eGFR calculation methods, CKD progression markers, and albuminuria grading. Candidates must understand CKD-related complications including anemia of chronic kidney disease, mineral and bone disorder (CKD-MBD), cardiovascular disease risk in CKD patients, and metabolic acidosis management through dietary and pharmacological interventions.
Nutrition Assessment in Renal Disease
Assessment in CKD is uniquely challenging due to fluid shifts, edema, amputations, and the obesity paradox in dialysis populations. Exam questions cover Subjective Global Assessment (SGA) adapted for dialysis, the Malnutrition Inflammation Score (MIS), and the limitations of standard markers like albumin and prealbumin in the presence of inflammation. Candidates must interpret serum creatinine, BUN, phosphorus, potassium, calcium, and bicarbonate values in clinical context.
Macronutrient and Micronutrient Recommendations
Protein requirements differ by treatment modality: 0.6 to 0.8 g/kg/day for non-dialysis CKD stages 3 through 5, 1.2 g/kg/day for hemodialysis patients, and 1.2 to 1.3 g/kg/day for peritoneal dialysis patients due to increased losses. Energy recommendations are generally 30 to 35 kcal/kg/day. Micronutrient management questions focus on phosphorus restriction strategies, phosphate binder selection (calcium carbonate, sevelamer, lanthanum carbonate, ferric citrate), potassium restriction with leaching techniques, sodium control for fluid balance and hypertension, and the clinical distinction between inactive and active vitamin D forms including calcitriol prescription thresholds in CKD.
Dialysis Modalities and Acute Kidney Injury
The CSR exam tests knowledge of both hemodialysis (3x weekly, IDPN support) and peritoneal dialysis (CAPD vs. CCPD, glucose absorption from dialysate, elevated protein losses). For acute kidney injury, candidates must know KDIGO AKI staging, protein recommendations during AKI, enteral vs. parenteral nutrition route selection, and electrolyte management during renal recovery. Renal transplant nutrition covers immunosuppressant side effects on nutritional status, post-transplant dietary modifications, and food safety protocols for immunocompromised patients.
- ✓Review KDIGO CKD classification: GFR-based stages 1-5 plus Stage 5D, and albuminuria categories G1-G5
- ✓Memorize protein targets: 0.6-0.8 g/kg/day (non-dialysis CKD), 1.2 g/kg (HD), 1.2-1.3 g/kg (PD)
- ✓Study all phosphate binder classes — calcium-based, non-calcium polymer, and rare earth metal options
- ✓Practice interpreting SGA and MIS scores alongside common biochemical markers for dialysis patients
- ✓Review potassium restriction strategies including food leaching techniques and high-potassium food lists
- ✓Understand the clinical difference between inactive vitamin D (cholecalciferol) and active vitamin D (calcitriol)
- ✓Study hemodialysis vs. peritoneal dialysis nutritional differences including IDPN and dialysate glucose absorption
- ✓Review KDIGO AKI staging and nutrition support algorithms for acute kidney injury
- ✓Study immunosuppressant medications and their nutritional implications after renal transplant
- ✓Practice calculating interdialytic weight gain targets and fluid restriction amounts for HD patients
Free CSR Practice Tests Online
Complement this printable PDF with our interactive CSR practice test online, where you can answer questions with immediate feedback, review detailed explanations for each answer, and track your performance across the major renal nutrition domains before your exam date.
- +Industry-recognized credential boosts your resume
- +Higher earning potential (10-20% salary increase on average)
- +Demonstrates commitment to professional development
- +Opens doors to advanced career opportunities
- −Exam preparation requires significant time investment (4-8 weeks)
- −Certification fees can be $100-$400+
- −May require continuing education to maintain
- −Some employers may not require certification
Sample Board Certified Specialist in Renal Nutrition Practice Questions
Try these questions from our free Board Certified Specialist in Renal Nutrition practice tests. The correct answer and an explanation follow each question.
A 28-year-old female dialysis patient is pregnant. How do protein and energy requirements change during pregnancy in the dialysis setting?
- A. Requirements are the same as non-pregnant dialysis patients
- B. Protein increases to 1.5–1.8 g/kg/day and energy to 35–40 kcal/kg/day; intensive daily dialysis (≥36 hours/week) is recommended to reduce uremic toxin exposure to the fetus
- C. Pregnancy on dialysis requires total parenteral nutrition only
- D. Protein is restricted to <0.6 g/kg/day to prevent fetal uremia
Answer: B. Protein increases to 1.5–1.8 g/kg/day and energy to 35–40 kcal/kg/day; intensive daily dialysis (≥36 hours/week) is recommended to reduce uremic toxin exposure to the fetus
Pregnancy on dialysis requires significantly increased protein (1.5–1.8 g/kg/day, adding ~20 g/day for fetal growth), higher energy intake (35–40 kcal/kg/day), intensive daily dialysis (36+ hours/week to reduce BUN < 50 mg/dL to minimize fetal uremia), and careful monitoring of all micronutrients.
What is the recommended minimum energy intake for a hospitalized hemodialysis patient with an acute infection (higher catabolism)?
- A. 20–25 kcal/kg/day
- B. 30–35 kcal/kg IBW/day, potentially increasing to 35–40 kcal/kg during acute illness
- C. 15–20 kcal/kg/day to reduce metabolic burden
- D. 50–60 kcal/kg/day to overcome catabolism
Answer: B. 30–35 kcal/kg IBW/day, potentially increasing to 35–40 kcal/kg during acute illness
KDOQI recommends 30–35 kcal/kg IBW/day for stable HD patients. During acute illness/stress, energy needs increase to 35–40 kcal/kg/day to overcome catabolism, preserve muscle mass, and support immune function.
A hemodialysis patient's normalized protein catabolic rate (nPCR) drops from 1.1 to 0.7 g/kg/day over 3 months. What nutritional risk does this trend indicate?
- A. Excessive protein intake leading to uremia
- B. Protein-energy wasting and inadequate dietary intake
- C. Improved metabolic control from dietary adherence
- D. Increased muscle anabolism from exercise
Answer: B. Protein-energy wasting and inadequate dietary intake
A declining nPCR below 1.0 g/kg/day in hemodialysis patients signals inadequate protein intake and is a marker of protein-energy wasting risk.
A CKD patient taking calcium carbonate as a phosphate binder is found to have hypercalcemia. What dietary counseling change is most appropriate?
- A. Increase dietary phosphorus to bind the excess calcium
- B. Limit calcium-rich foods and discuss non-calcium binder alternatives with the care team
- C. Stop all dairy products and add vitamin D supplementation
- D. Increase fluid intake to dilute serum calcium
Answer: B. Limit calcium-rich foods and discuss non-calcium binder alternatives with the care team
Hypercalcemia in a patient on calcium-based binders warrants limiting high-calcium foods and flagging the need for non-calcium binder consideration.
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