#1
Which of the following is NOT a function of the kidneys?
Conversion of glucose to glycogen
ExplanationKidneys do not convert glucose to glycogen, rather they filter blood and regulate electrolytes.
#2
Which substance is primarily responsible for maintaining the osmotic pressure of blood?
Albumin
ExplanationAlbumin is the main protein in blood plasma, contributing to its osmotic pressure.
#3
What is the primary function of the loop of Henle in the nephron?
Modification of urine concentration
ExplanationLoop of Henle plays a crucial role in creating concentrated urine by reabsorbing water and ions.
#4
Which hormone is responsible for stimulating the production of red blood cells in response to low oxygen levels?
Erythropoietin
ExplanationErythropoietin is produced by the kidneys and stimulates bone marrow to produce red blood cells.
#5
Which of the following substances is NOT normally found in urine?
Glucose
ExplanationNormally, glucose is completely reabsorbed in the renal tubules and should not appear in urine.
#6
What is the function of the glomerulus in the nephron?
Filtration of blood plasma
ExplanationGlomerulus filters blood to form filtrate in the initial stages of urine formation.
#7
Which hormone is responsible for stimulating the reabsorption of water in the kidneys?
Antidiuretic hormone (ADH)
ExplanationADH acts on the kidney's collecting ducts to increase water reabsorption.
#8
Which of the following is a characteristic of acute kidney injury (AKI)?
Sudden decrease in kidney function within hours to days
ExplanationAKI involves a rapid loss of kidney function, often occurring over a short period.
#9
Which of the following is NOT a common complication of chronic kidney disease (CKD)?
Hypoglycemia
ExplanationHypoglycemia is not a direct complication of CKD, unlike other metabolic disturbances.
#10
What is the main function of the proximal convoluted tubule in the nephron?
Reabsorption of water, ions, and nutrients
ExplanationProximal convoluted tubule reabsorbs essential substances back into the bloodstream.
#11
In hemodialysis, what is the purpose of the dialyzer?
To filter and remove waste products from the blood
ExplanationThe dialyzer acts as an artificial kidney, removing waste and excess fluids from the blood during hemodialysis.
#12
What is the primary purpose of peritoneal dialysis?
To remove waste and excess fluid from the body using the peritoneum
ExplanationPeritoneal dialysis relies on the peritoneal membrane to filter waste and fluids from the body.
#13
Which of the following is a potential complication of hemodialysis?
Hypotension
ExplanationHypotension may occur due to rapid fluid removal during hemodialysis sessions.
#14
What is the primary function of the renal medulla?
Modification of urine concentration
ExplanationRenal medulla plays a crucial role in concentrating urine through the reabsorption of water and salts.
#15
Which of the following is a common complication of peritoneal dialysis?
Peritonitis
ExplanationPeritonitis, inflammation of the peritoneal membrane, is a common complication of peritoneal dialysis.