Page 1 of 42
2025/2026 HEMODIALYSIS TEST EXAM CURRENTLY
TESTING QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED) FOR GUARANTEED
PASS/TOP-RATED A+.
HEMODIALYSIS
Ace your Hemodialysis certification exam with this targeted
guide, designed to master principles of extracorporeal
circulation, electrolyte balance, and complication
management. This resource delivers scenario-based practice
questions covering dialysis equipment, infection control, and
patient safety protocols.
What is eGFR ...... ANSWER ....... • eGFR stands for
estimated Glomerular Filtration Rate. It is a calculated
value that estimates how well the kidneys are filtering
blood — specifically, how much blood passes through
the glomeruli (tiny filters in the kidneys) each minute.
How is eGFR measured? ...... ANSWER ....... • eGFR is
not directly measured, but rather calculated using a
formula that includes:
• Serum creatinine level
• Age
• Sex
, Page 2 of 42
• Race (in some older equations)
Common formulas include the CKD-EPI and
MDRDequations. These formulas use creatinine because
it is a waste product filtered by the kidneys, and its level
in the blood reflects kidney function.
What does eGFR indicate? ...... ANSWER ....... • eGFR
provides an estimate of kidney function. It helps
determine:
• The stage of chronic kidney disease (CKD)
• Whether kidney function is normal, mildly reduced, or
severely impaired
• The need for further evaluation or treatment, including
dialysis
• For example:
• eGFR ≥ 90: Normal kidney function
• eGFR 60-89: Mild decrease
• eGFR < 60: Possible kidney disease
• eGFR < 15: Kidney failure (may require dialysis)
Why measure eGFR as an index of renal function? ......
ANSWER ....... eGFR is measured because:
, Page 3 of 42
• It is a simple, non-invasive way to assess kidney
function.
• It helps detect kidney disease early, even before
symptoms appear.
• It guides clinical decisions about medication dosing,
referrals, and dialysis planning.
• It is more accurate than using serum creatinine alone,
which can be affected by muscle mass and other factors.
How does age affect eGFR? ...... ANSWER ....... • As
people age, eGFR naturally declines, even in healthy
individuals. This is due to:
• A gradual loss of nephrons (functional units of the
kidney)
• Reduced renal blood flow
• Therefore, an older adult may have a lower eGFR that
reflects normal aging, not necessarily kidney disease.
Age is included in the eGFR calculation to account for
this physiological change.
Where is most of the body's phosphorus stored? ......
ANSWER ....... • Most phosphorus is stored in the bones
and the rest is found in the intracellular spaces where it
is used for metabolism
, Page 4 of 42
What is CaxP? ...... ANSWER ....... • Calcium and
phosphorus bind together to form a calcium-phosphate
product called CaxP.
What is the significance of a high level of CaxP? ......
ANSWER ....... • Higher levels of CaxP are associated
with cardiovascular disease and calcium deposits in soft
tissues and blood vessels.
Dialysate solutions are also referred to as ________
___________ ...... ANSWER ....... Acid bath
What is the target range for potassium serum level? ......
ANSWER ....... 3.5-5.0
What does the Blood Urea Nitrogen (BUN) serum level
measure? ...... ANSWER ....... How well the kidneys are
working, indicates dietary intake.
In patients receiving hemodialysis, how is the CO2 level
regulated? ...... ANSWER ....... By adjusting bicarb level
in dialysate
2025/2026 HEMODIALYSIS TEST EXAM CURRENTLY
TESTING QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED) FOR GUARANTEED
PASS/TOP-RATED A+.
HEMODIALYSIS
Ace your Hemodialysis certification exam with this targeted
guide, designed to master principles of extracorporeal
circulation, electrolyte balance, and complication
management. This resource delivers scenario-based practice
questions covering dialysis equipment, infection control, and
patient safety protocols.
What is eGFR ...... ANSWER ....... • eGFR stands for
estimated Glomerular Filtration Rate. It is a calculated
value that estimates how well the kidneys are filtering
blood — specifically, how much blood passes through
the glomeruli (tiny filters in the kidneys) each minute.
How is eGFR measured? ...... ANSWER ....... • eGFR is
not directly measured, but rather calculated using a
formula that includes:
• Serum creatinine level
• Age
• Sex
, Page 2 of 42
• Race (in some older equations)
Common formulas include the CKD-EPI and
MDRDequations. These formulas use creatinine because
it is a waste product filtered by the kidneys, and its level
in the blood reflects kidney function.
What does eGFR indicate? ...... ANSWER ....... • eGFR
provides an estimate of kidney function. It helps
determine:
• The stage of chronic kidney disease (CKD)
• Whether kidney function is normal, mildly reduced, or
severely impaired
• The need for further evaluation or treatment, including
dialysis
• For example:
• eGFR ≥ 90: Normal kidney function
• eGFR 60-89: Mild decrease
• eGFR < 60: Possible kidney disease
• eGFR < 15: Kidney failure (may require dialysis)
Why measure eGFR as an index of renal function? ......
ANSWER ....... eGFR is measured because:
, Page 3 of 42
• It is a simple, non-invasive way to assess kidney
function.
• It helps detect kidney disease early, even before
symptoms appear.
• It guides clinical decisions about medication dosing,
referrals, and dialysis planning.
• It is more accurate than using serum creatinine alone,
which can be affected by muscle mass and other factors.
How does age affect eGFR? ...... ANSWER ....... • As
people age, eGFR naturally declines, even in healthy
individuals. This is due to:
• A gradual loss of nephrons (functional units of the
kidney)
• Reduced renal blood flow
• Therefore, an older adult may have a lower eGFR that
reflects normal aging, not necessarily kidney disease.
Age is included in the eGFR calculation to account for
this physiological change.
Where is most of the body's phosphorus stored? ......
ANSWER ....... • Most phosphorus is stored in the bones
and the rest is found in the intracellular spaces where it
is used for metabolism
, Page 4 of 42
What is CaxP? ...... ANSWER ....... • Calcium and
phosphorus bind together to form a calcium-phosphate
product called CaxP.
What is the significance of a high level of CaxP? ......
ANSWER ....... • Higher levels of CaxP are associated
with cardiovascular disease and calcium deposits in soft
tissues and blood vessels.
Dialysate solutions are also referred to as ________
___________ ...... ANSWER ....... Acid bath
What is the target range for potassium serum level? ......
ANSWER ....... 3.5-5.0
What does the Blood Urea Nitrogen (BUN) serum level
measure? ...... ANSWER ....... How well the kidneys are
working, indicates dietary intake.
In patients receiving hemodialysis, how is the CO2 level
regulated? ...... ANSWER ....... By adjusting bicarb level
in dialysate
