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DAVITA RISE FINAL EXAM QUESTIONS WITH
ANSWERS 2025/2026
Aluminum in water used for dialysis causes-correct-answer-• Anemia
• Bone disease
• Nausea
• Vomiting
Chlorine in water used for hemodialysis causes-correct-answer-hemolysis
Excess calcium and sodium in water used for dialysis causes-correct-answer-
hypertension
Excess calcium and magnesium in water used for dialysis causes-correct-answer-
muscle weakness
What does the RO remove?-correct-answer-Organic and inorganic contaminants,
bacteria, and endotoxins
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What are two concerns with using DI Tanks?-correct-answer-• Exhaust quickly
• When exhausted they dump/release previously removed ions back into water
Response to Final Water Quality Alarm-correct-answer-Bypass
• Notify Charge nurse/FA/Biomed/ Medical Director
• If not restored must terminate treatments and complete REM
Water/Dialysate culture results-correct-answer-• Acceptable level: below 50
cfu/ml
• Action level: 50-99 cfu/ml
• Unacceptable level: 100 cfu/ml or >
Water endotoxin testing results-correct-answer-• Acceptable level: below 0.12
EU/ml
• Action level: 0.12 to < 0.25 EU/ml
• Unacceptable level: 0.25 EU or >
Dialysate endotoxin testing results-correct-answer-• Acceptable level: <0.25
EU/ml
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• Action level: 0.25 to < 0.50 EU/ml
• Unacceptable level: 0.50 EU/ml or >
How often are water and dialysate cultures drawn and monitored for bacteria and
endotoxins?-correct-answer-monthly
13. What removes chlorine/chloramines?-correct-answer-carbon tanks
Chlorine/Chloramine testing • When-correct-answer-o Always test while the RO is
actively supplying water: After the RO has operated for at least 15 minutes, before
the first shift of patients, and every 4 hours
Chlorine/Chloramine testing, Where-correct-answer-o After Primary carbon tank
sample port • Acceptable result o Less than or equal to 0.1 mg/l
Action if results are too high post primary tank-correct-answer-o Repeat the test-
if still too high - move onto secondary port and test, remember to notify biomed
and FA
• F/U if secondary test results are within limits o Every 30 minutes
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• F/U if secondary test results are too high o Stop dialysis by placing dialysis
delivery system into bypass-do not rinse patients' blood back
Hardness testing
• What is removed?
• Why is it important?
When do we test?-correct-answer-o Calcium and Magnesium
o For RO protection
o End of Day
Hypotension
• Definition-correct-answer-o Systolic BP <90 Diastolic BP < 50 or drop in systolic
more than 20 mm/hg
Hypotension causes and symptoms-correct-answer-o Rapid or inappropriate fluid
loss, antihypertensive drugs, low blood volume, food ingestion, unstable
cardiovascular condition
o Flushing, yawning, dizziness, ringing in the ears, tachycardia, anxious feeling,
nausea/vomiting, cold clammy skin, seizures, cardiac arrest
Hypotension
DAVITA RISE FINAL EXAM QUESTIONS WITH
ANSWERS 2025/2026
Aluminum in water used for dialysis causes-correct-answer-• Anemia
• Bone disease
• Nausea
• Vomiting
Chlorine in water used for hemodialysis causes-correct-answer-hemolysis
Excess calcium and sodium in water used for dialysis causes-correct-answer-
hypertension
Excess calcium and magnesium in water used for dialysis causes-correct-answer-
muscle weakness
What does the RO remove?-correct-answer-Organic and inorganic contaminants,
bacteria, and endotoxins
,2|Page
What are two concerns with using DI Tanks?-correct-answer-• Exhaust quickly
• When exhausted they dump/release previously removed ions back into water
Response to Final Water Quality Alarm-correct-answer-Bypass
• Notify Charge nurse/FA/Biomed/ Medical Director
• If not restored must terminate treatments and complete REM
Water/Dialysate culture results-correct-answer-• Acceptable level: below 50
cfu/ml
• Action level: 50-99 cfu/ml
• Unacceptable level: 100 cfu/ml or >
Water endotoxin testing results-correct-answer-• Acceptable level: below 0.12
EU/ml
• Action level: 0.12 to < 0.25 EU/ml
• Unacceptable level: 0.25 EU or >
Dialysate endotoxin testing results-correct-answer-• Acceptable level: <0.25
EU/ml
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• Action level: 0.25 to < 0.50 EU/ml
• Unacceptable level: 0.50 EU/ml or >
How often are water and dialysate cultures drawn and monitored for bacteria and
endotoxins?-correct-answer-monthly
13. What removes chlorine/chloramines?-correct-answer-carbon tanks
Chlorine/Chloramine testing • When-correct-answer-o Always test while the RO is
actively supplying water: After the RO has operated for at least 15 minutes, before
the first shift of patients, and every 4 hours
Chlorine/Chloramine testing, Where-correct-answer-o After Primary carbon tank
sample port • Acceptable result o Less than or equal to 0.1 mg/l
Action if results are too high post primary tank-correct-answer-o Repeat the test-
if still too high - move onto secondary port and test, remember to notify biomed
and FA
• F/U if secondary test results are within limits o Every 30 minutes
, 4|Page
• F/U if secondary test results are too high o Stop dialysis by placing dialysis
delivery system into bypass-do not rinse patients' blood back
Hardness testing
• What is removed?
• Why is it important?
When do we test?-correct-answer-o Calcium and Magnesium
o For RO protection
o End of Day
Hypotension
• Definition-correct-answer-o Systolic BP <90 Diastolic BP < 50 or drop in systolic
more than 20 mm/hg
Hypotension causes and symptoms-correct-answer-o Rapid or inappropriate fluid
loss, antihypertensive drugs, low blood volume, food ingestion, unstable
cardiovascular condition
o Flushing, yawning, dizziness, ringing in the ears, tachycardia, anxious feeling,
nausea/vomiting, cold clammy skin, seizures, cardiac arrest
Hypotension
