1
Santa Clara County Dialysis Nurse
Examination Comprehensive 150-
Question Multiple-Choice
Examination a well detailed one
written and graded
A+ upgraded
Examination Title:
Santa Clara County Dialysis Nurse Certification Examination: Advanced Clinical Competency
Assessment in Hemodialysis, Peritoneal Dialysis, Renal Pathophysiology, Vascular Access
Management, and Dialysis-Related Complications for Expert Nephrology Nursing Practice
SECTION A: CONCEPTS OF KIDNEY DISEASE (28% of Examination)
Subsection A1: Renal Anatomy and Physiology
Question 1
A nephrology nurse is reviewing the renal anatomy of a patient newly diagnosed with chronic
kidney disease. Which statement correctly describes the functional unit of the kidney and its
blood supply?
A) The nephron receives blood from the efferent arteriole and drains into the peritubular
capillaries
, 2
B) The nephron receives blood from the afferent arteriole and drains into the peritubular
capillaries via the efferent arteriole
C) The glomerulus receives blood directly from the renal vein
D) The nephron receives blood from the efferent arteriole and drains into the glomerulus
-detailed answer 100% correct :- B
Rationale: The nephron, the functional unit of the kidney, receives blood from the afferent
arteriole, which delivers blood to the glomerulus for filtration. Blood then exits the glomerulus
through the efferent arteriole and flows into the peritubular capillaries, which surround the
renal tubules for reabsorption and secretion. Options A, C, and D incorrectly describe the
direction of blood flow within the nephron.
Question 2
A dialysis nurse is teaching a patient about kidney function. Which of the following best
describes the primary role of the juxtaglomerular apparatus?
A) Regulation of glomerular filtration rate and blood pressure through renin secretion
B) Reabsorption of glucose and amino acids from the filtrate
C) Secretion of erythropoietin in response to hypoxia
D) Concentration of urine through the countercurrent multiplier system
-detailed answer 100% correct :- A
Rationale: The juxtaglomerular apparatus is a specialized structure located at the vascular pole
of the glomerulus that regulates glomerular filtration rate and systemic blood pressure through
the secretion of renin. Renin activates the renin-angiotensin-aldosterone system. Option B
describes proximal tubule function, option C describes interstitial fibroblast function, and option
D describes loop of Henle function.
Question 3
A patient with end-stage renal disease has a glomerular filtration rate (GFR) of 12
mL/min/1.73m². The nurse understands that this GFR value indicates which stage of chronic
kidney disease?
A) Stage 2 CKD (mild reduction)
B) Stage 3 CKD (moderate reduction)
C) Stage 4 CKD (severe reduction)
D) Stage 5 CKD (kidney failure)
, 3
-detailed answer 100% correct :- D
Rationale: Stage 5 CKD (kidney failure) is defined as a GFR of less than 15 mL/min/1.73m². A
GFR of 12 mL/min/1.73m² indicates that the patient has reached end-stage renal disease and
requires renal replacement therapy such as dialysis or transplantation. Stage 2 is 60-89 mL/min,
Stage 3 is 30-59 mL/min, and Stage 4 is 15-29 mL/min.
Question 4
The nurse is assessing a patient with chronic kidney disease who presents with metallic taste in
the mouth, anorexia, and nausea. These symptoms are most consistent with which of the
following?
A) Hyperkalemia
B) Uremic syndrome
C) Metabolic alkalosis
D) Fluid overload
-detailed answer 100% correct :- B
Rationale: Uremic syndrome, caused by the accumulation of nitrogenous waste products in the
blood, commonly presents with gastrointestinal symptoms including metallic taste (uremic
fetor), anorexia, nausea, and vomiting. Hyperkalemia typically presents with cardiac
arrhythmias, metabolic alkalosis is less common in CKD, and fluid overload presents with edema
and dyspnea.
Question 5
Which of the following laboratory values would the nurse expect to be elevated in a patient
with chronic kidney disease due to decreased renal excretion?
A) Serum calcium
B) Serum bicarbonate
C) Serum phosphorus
D) Serum albumin
-detailed answer 100% correct :- C
Rationale: In chronic kidney disease, decreased renal excretion leads to phosphorus retention
and hyperphosphatemia. This contributes to secondary hyperparathyroidism and renal
osteodystrophy. Serum calcium is typically low due to decreased vitamin D activation,
bicarbonate is low (metabolic acidosis), and albumin may be low due to malnutrition and
protein loss.
, 4
Question 6
A patient with Stage 4 CKD has a serum potassium of 6.2 mEq/L. The nurse recognizes that this
level places the patient at risk for which of the following?
A) Hypercalcemia
B) Cardiac arrhythmias
C) Hypertension
D) Pulmonary edema
-detailed answer 100% correct :- B
Rationale: Hyperkalemia (potassium >5.5 mEq/L) is a life-threatening complication of CKD that
can cause cardiac arrhythmias, including peaked T waves, widened QRS complexes, and
potentially fatal ventricular fibrillation. While hypertension and pulmonary edema may occur in
CKD, they are not the immediate life-threatening risk of hyperkalemia. Hypercalcemia is not
associated with hyperkalemia.
Question 7
The nurse is caring for a patient with chronic kidney disease who has anemia. Which of the
following is the primary pathophysiological cause of anemia in this patient population?
A) Iron deficiency due to poor dietary intake
B) Decreased production of erythropoietin by the kidneys
C) Hemolysis from uremic toxins
D) Vitamin B12 deficiency
-detailed answer 100% correct :- B
Rationale: Anemia in chronic kidney disease is primarily caused by decreased production of
erythropoietin by the failing kidneys. Erythropoietin is a hormone produced by the kidneys that
stimulates red blood cell production in the bone marrow. While iron deficiency, hemolysis, and
vitamin deficiencies may contribute, decreased erythropoietin production is the primary cause.
Question 8
A patient with CKD has a serum creatinine of 6.5 mg/dL and BUN of 85 mg/dL. The nurse
understands that these elevated values indicate:
A) Adequate renal perfusion
B) Decreased glomerular filtration rate
Santa Clara County Dialysis Nurse
Examination Comprehensive 150-
Question Multiple-Choice
Examination a well detailed one
written and graded
A+ upgraded
Examination Title:
Santa Clara County Dialysis Nurse Certification Examination: Advanced Clinical Competency
Assessment in Hemodialysis, Peritoneal Dialysis, Renal Pathophysiology, Vascular Access
Management, and Dialysis-Related Complications for Expert Nephrology Nursing Practice
SECTION A: CONCEPTS OF KIDNEY DISEASE (28% of Examination)
Subsection A1: Renal Anatomy and Physiology
Question 1
A nephrology nurse is reviewing the renal anatomy of a patient newly diagnosed with chronic
kidney disease. Which statement correctly describes the functional unit of the kidney and its
blood supply?
A) The nephron receives blood from the efferent arteriole and drains into the peritubular
capillaries
, 2
B) The nephron receives blood from the afferent arteriole and drains into the peritubular
capillaries via the efferent arteriole
C) The glomerulus receives blood directly from the renal vein
D) The nephron receives blood from the efferent arteriole and drains into the glomerulus
-detailed answer 100% correct :- B
Rationale: The nephron, the functional unit of the kidney, receives blood from the afferent
arteriole, which delivers blood to the glomerulus for filtration. Blood then exits the glomerulus
through the efferent arteriole and flows into the peritubular capillaries, which surround the
renal tubules for reabsorption and secretion. Options A, C, and D incorrectly describe the
direction of blood flow within the nephron.
Question 2
A dialysis nurse is teaching a patient about kidney function. Which of the following best
describes the primary role of the juxtaglomerular apparatus?
A) Regulation of glomerular filtration rate and blood pressure through renin secretion
B) Reabsorption of glucose and amino acids from the filtrate
C) Secretion of erythropoietin in response to hypoxia
D) Concentration of urine through the countercurrent multiplier system
-detailed answer 100% correct :- A
Rationale: The juxtaglomerular apparatus is a specialized structure located at the vascular pole
of the glomerulus that regulates glomerular filtration rate and systemic blood pressure through
the secretion of renin. Renin activates the renin-angiotensin-aldosterone system. Option B
describes proximal tubule function, option C describes interstitial fibroblast function, and option
D describes loop of Henle function.
Question 3
A patient with end-stage renal disease has a glomerular filtration rate (GFR) of 12
mL/min/1.73m². The nurse understands that this GFR value indicates which stage of chronic
kidney disease?
A) Stage 2 CKD (mild reduction)
B) Stage 3 CKD (moderate reduction)
C) Stage 4 CKD (severe reduction)
D) Stage 5 CKD (kidney failure)
, 3
-detailed answer 100% correct :- D
Rationale: Stage 5 CKD (kidney failure) is defined as a GFR of less than 15 mL/min/1.73m². A
GFR of 12 mL/min/1.73m² indicates that the patient has reached end-stage renal disease and
requires renal replacement therapy such as dialysis or transplantation. Stage 2 is 60-89 mL/min,
Stage 3 is 30-59 mL/min, and Stage 4 is 15-29 mL/min.
Question 4
The nurse is assessing a patient with chronic kidney disease who presents with metallic taste in
the mouth, anorexia, and nausea. These symptoms are most consistent with which of the
following?
A) Hyperkalemia
B) Uremic syndrome
C) Metabolic alkalosis
D) Fluid overload
-detailed answer 100% correct :- B
Rationale: Uremic syndrome, caused by the accumulation of nitrogenous waste products in the
blood, commonly presents with gastrointestinal symptoms including metallic taste (uremic
fetor), anorexia, nausea, and vomiting. Hyperkalemia typically presents with cardiac
arrhythmias, metabolic alkalosis is less common in CKD, and fluid overload presents with edema
and dyspnea.
Question 5
Which of the following laboratory values would the nurse expect to be elevated in a patient
with chronic kidney disease due to decreased renal excretion?
A) Serum calcium
B) Serum bicarbonate
C) Serum phosphorus
D) Serum albumin
-detailed answer 100% correct :- C
Rationale: In chronic kidney disease, decreased renal excretion leads to phosphorus retention
and hyperphosphatemia. This contributes to secondary hyperparathyroidism and renal
osteodystrophy. Serum calcium is typically low due to decreased vitamin D activation,
bicarbonate is low (metabolic acidosis), and albumin may be low due to malnutrition and
protein loss.
, 4
Question 6
A patient with Stage 4 CKD has a serum potassium of 6.2 mEq/L. The nurse recognizes that this
level places the patient at risk for which of the following?
A) Hypercalcemia
B) Cardiac arrhythmias
C) Hypertension
D) Pulmonary edema
-detailed answer 100% correct :- B
Rationale: Hyperkalemia (potassium >5.5 mEq/L) is a life-threatening complication of CKD that
can cause cardiac arrhythmias, including peaked T waves, widened QRS complexes, and
potentially fatal ventricular fibrillation. While hypertension and pulmonary edema may occur in
CKD, they are not the immediate life-threatening risk of hyperkalemia. Hypercalcemia is not
associated with hyperkalemia.
Question 7
The nurse is caring for a patient with chronic kidney disease who has anemia. Which of the
following is the primary pathophysiological cause of anemia in this patient population?
A) Iron deficiency due to poor dietary intake
B) Decreased production of erythropoietin by the kidneys
C) Hemolysis from uremic toxins
D) Vitamin B12 deficiency
-detailed answer 100% correct :- B
Rationale: Anemia in chronic kidney disease is primarily caused by decreased production of
erythropoietin by the failing kidneys. Erythropoietin is a hormone produced by the kidneys that
stimulates red blood cell production in the bone marrow. While iron deficiency, hemolysis, and
vitamin deficiencies may contribute, decreased erythropoietin production is the primary cause.
Question 8
A patient with CKD has a serum creatinine of 6.5 mg/dL and BUN of 85 mg/dL. The nurse
understands that these elevated values indicate:
A) Adequate renal perfusion
B) Decreased glomerular filtration rate
