DaVita Certification EXAM STUDY
GUIDE 2026/2027 COMPLETE
QUESTIONS WITH VERIFIED CORRECT
ANSWERS || 100% GUARANTEED
PASS NEWEST VERSION
Description: A comprehensive set of 100 multiple-choice questions designed for DaVita
Patient Care Technician (PCT) and nephrology nursing certification preparation.
Covering all core domains: hemodialysis principles, vascular access, infection control,
water treatment, patient assessment, complications management, and documentation.
Key Words: DaVita PCT exam, hemodialysis certification, diffusion osmosis ultrafiltration
convection, AV fistula cannulation, infection control, Kt/V, water treatment, patient
safety, CMS conditions for coverage, ANNA standards.
Section 1: Hemodialysis Principles & Transport Mechanisms
Q1. The four transport mechanisms that play a role in hemodialysis are:
A. Filtration, Absorption, Diffusion, and Osmosis
B. Ultrafiltration, Convection, Diffusion, and Osmosis
C. Ultrafiltration, Convection, Active Transport, and Osmosis
D. Diffusion, Osmosis, Filtration, and Secretion
Correct Answer: B ✅
,Rationale: The four transport mechanisms in hemodialysis are ultrafiltration, convection,
diffusion, and osmosis. These work together: diffusion removes waste by concentration
gradient, osmosis balances water movement, convection drags larger molecules with
fluid across the membrane, and ultrafiltration controls fluid removal via hydrostatic
pressure .
Q2. The movement of solutes from an area of higher concentration to an area of
lower concentration is called:
A. Osmosis
B. Ultrafiltration
C. Diffusion
D. Convection
Correct Answer: C ✅
Rationale: Diffusion is the movement of solutes from higher to lower concentration.
This is the primary mechanism by which hemodialysis removes metabolic waste
products such as urea and creatinine .
Q3. The movement of water across a semipermeable membrane from an area of
lower solute concentration to an area of higher solute concentration is called:
A. Diffusion
B. Osmosis
C. Convection
D. Ultrafiltration
,Correct Answer: B ✅
Rationale: Osmosis is the movement of water across a semipermeable membrane from
lower solute concentration to higher solute concentration. This helps balance fluid and
electrolyte levels during dialysis .
Q4. Solutes are dragged across a semipermeable membrane along with fluid. This
describes which transport mechanism?
A. Diffusion
B. Osmosis
C. Convection
D. Ultrafiltration
Correct Answer: C ✅
Rationale: Convection involves the movement of solutes along with fluid across the
membrane due to hydrostatic pressure. This mechanism contributes to removal of larger
molecules that may not be effectively removed by diffusion alone .
Q5. During dialysis, the movement of bicarbonate from the dialysate into the
blood:
A. Causes metabolic acidosis
B. Helps normalize body pH
C. Removes excess bicarbonate
D. Has no effect on acid-base balance
, Correct Answer: B ✅
Rationale: Bicarbonate moves from dialysate to blood to help normalize body pH. The
acid concentrate replaces the excretory function of normal kidney function by removing
metabolic acidosis and normalizing electrolytes .
Q6. The excretory functions of the kidneys include:
A. Renin and erythropoietin secretion
B. Removing excess water, urea, and metabolic wastes from the blood
C. Activation of vitamin D
D. Regulation of blood pressure
Correct Answer: B ✅
Rationale: The excretory functions of the kidneys include removing excess water, urea,
and metabolic wastes from the blood. This is the primary function that hemodialysis
replaces. Endocrine functions include renin and erythropoietin secretion .
Q7. Which of the following is an endocrine function of the kidneys?
A. Removal of metabolic wastes
B. Renin and erythropoietin secretion
C. Fluid balance regulation
D. Acid-base balance
Correct Answer: B ✅
GUIDE 2026/2027 COMPLETE
QUESTIONS WITH VERIFIED CORRECT
ANSWERS || 100% GUARANTEED
PASS NEWEST VERSION
Description: A comprehensive set of 100 multiple-choice questions designed for DaVita
Patient Care Technician (PCT) and nephrology nursing certification preparation.
Covering all core domains: hemodialysis principles, vascular access, infection control,
water treatment, patient assessment, complications management, and documentation.
Key Words: DaVita PCT exam, hemodialysis certification, diffusion osmosis ultrafiltration
convection, AV fistula cannulation, infection control, Kt/V, water treatment, patient
safety, CMS conditions for coverage, ANNA standards.
Section 1: Hemodialysis Principles & Transport Mechanisms
Q1. The four transport mechanisms that play a role in hemodialysis are:
A. Filtration, Absorption, Diffusion, and Osmosis
B. Ultrafiltration, Convection, Diffusion, and Osmosis
C. Ultrafiltration, Convection, Active Transport, and Osmosis
D. Diffusion, Osmosis, Filtration, and Secretion
Correct Answer: B ✅
,Rationale: The four transport mechanisms in hemodialysis are ultrafiltration, convection,
diffusion, and osmosis. These work together: diffusion removes waste by concentration
gradient, osmosis balances water movement, convection drags larger molecules with
fluid across the membrane, and ultrafiltration controls fluid removal via hydrostatic
pressure .
Q2. The movement of solutes from an area of higher concentration to an area of
lower concentration is called:
A. Osmosis
B. Ultrafiltration
C. Diffusion
D. Convection
Correct Answer: C ✅
Rationale: Diffusion is the movement of solutes from higher to lower concentration.
This is the primary mechanism by which hemodialysis removes metabolic waste
products such as urea and creatinine .
Q3. The movement of water across a semipermeable membrane from an area of
lower solute concentration to an area of higher solute concentration is called:
A. Diffusion
B. Osmosis
C. Convection
D. Ultrafiltration
,Correct Answer: B ✅
Rationale: Osmosis is the movement of water across a semipermeable membrane from
lower solute concentration to higher solute concentration. This helps balance fluid and
electrolyte levels during dialysis .
Q4. Solutes are dragged across a semipermeable membrane along with fluid. This
describes which transport mechanism?
A. Diffusion
B. Osmosis
C. Convection
D. Ultrafiltration
Correct Answer: C ✅
Rationale: Convection involves the movement of solutes along with fluid across the
membrane due to hydrostatic pressure. This mechanism contributes to removal of larger
molecules that may not be effectively removed by diffusion alone .
Q5. During dialysis, the movement of bicarbonate from the dialysate into the
blood:
A. Causes metabolic acidosis
B. Helps normalize body pH
C. Removes excess bicarbonate
D. Has no effect on acid-base balance
, Correct Answer: B ✅
Rationale: Bicarbonate moves from dialysate to blood to help normalize body pH. The
acid concentrate replaces the excretory function of normal kidney function by removing
metabolic acidosis and normalizing electrolytes .
Q6. The excretory functions of the kidneys include:
A. Renin and erythropoietin secretion
B. Removing excess water, urea, and metabolic wastes from the blood
C. Activation of vitamin D
D. Regulation of blood pressure
Correct Answer: B ✅
Rationale: The excretory functions of the kidneys include removing excess water, urea,
and metabolic wastes from the blood. This is the primary function that hemodialysis
replaces. Endocrine functions include renin and erythropoietin secretion .
Q7. Which of the following is an endocrine function of the kidneys?
A. Removal of metabolic wastes
B. Renin and erythropoietin secretion
C. Fluid balance regulation
D. Acid-base balance
Correct Answer: B ✅
