Examination | Real Questions & Verified Answers | Patient
Care Technician | Pass Guaranteed - A+ Graded
Q1: According to DaVita's Mission, we are a "village" committed to:
A. Maximizing shareholder value through efficient dialysis delivery
B. Improving patients' quality of life and demonstrating clinical outcomes [CORRECT]
C. Expanding dialysis center locations nationwide
D. Reducing healthcare costs for insurance providers
Correct Answer: B
Rationale: DaVita's core Mission focuses on patient-centered care and quality of life, not
financial metrics or expansion (A, C, D). The "village" philosophy emphasizes
community, care, and clinical excellence. This aligns with CMS Conditions for Coverage
that prioritize patient safety and outcomes over operational efficiency alone.
Q2: Which principle describes the movement of water across a semipermeable
membrane from an area of low solute concentration to high solute concentration?
A. Diffusion
B. Osmosis [CORRECT]
C. Ultrafiltration
D. Convection
Correct Answer: B
Rationale: Osmosis is the passive movement of water across a semipermeable
membrane toward higher solute concentration (water follows solutes). Diffusion (A) is
solute movement down concentration gradients. Ultrafiltration (C) is pressure-driven
water/solute removal in dialysis. Convection (D) is solute transport with water flow
,(solvent drag). Understanding these principles is essential for managing dialysis
prescriptions.
Q3: A patient weighs 70.0 kg pre-dialysis and 68.5 kg post-dialysis. How many liters of
fluid were removed during the treatment?
A. 0.5 liters
B. 1.0 liters
C. 1.5 liters [CORRECT]
D. 2.0 liters
Correct Answer: C
Rationale: Calculation: 70.0 kg - 68.5 kg = 1.5 kg. In dialysis, 1 kg weight loss = 1 liter
fluid removal (assuming no food intake during treatment). This 1.5L ultrafiltration
volume would be programmed into the dialysis machine. PCTs must verify this matches
the prescribed fluid removal goal and monitor for hypotension during large-volume
removal.
Q4: Select all that apply: Which of the following are DaVita Core Values? (Select all that
apply)
A. Service Excellence [CORRECT]
B. Integrity [CORRECT]
C. Team [CORRECT]
D. Continuous Expansion
Correct Answer: A, B, C
Rationale: DaVita's Core Values are Service Excellence, Integrity, Team, Continuous
Improvement, Fulfillment, and Fun. "Continuous Expansion" (D) is not a core
value—DaVita prioritizes quality over growth metrics. PCTs must embody these values
in patient interactions, documentation accuracy, and teamwork.
Q5: The water treatment system component that removes chlorine and chloramines
from municipal water is:
,A. Reverse osmosis membrane
B. Carbon filters [CORRECT]
C. Water softener
D. Deionization tanks
Correct Answer: B
Rationale: Carbon filters (activated carbon) adsorb chlorine, chloramines, and organic
compounds that could harm patients or damage the RO membrane. RO membranes (A)
remove dissolved ions and bacteria. Water softeners (C) remove calcium/magnesium
(hardness) via ion exchange. Deionization (D) polishes water after RO. Chloramine
removal requires sufficient contact time and carbon bed monitoring per AAMI
standards.
Q6: A patient's prescribed blood flow rate (QB) is 400 mL/min. The dialyzer clearance
(KoA) is 800 mL/min. Which statement is accurate regarding clearance?
A. The actual urea clearance will exceed 400 mL/min
B. The actual urea clearance will be less than 400 mL/min due to access recirculation
and compartment effects [CORRECT]
C. The clearance equals exactly 400 mL/min
D. Clearance is independent of blood flow rate
Correct Answer: B
Rationale: While QB = 400 mL/min, actual delivered clearance is reduced by
cardiopulmonary recirculation, access recirculation (especially with catheters), and urea
compartmentalization (slower movement from cells/tissues to blood). KoA represents
maximum theoretical clearance. PCTs optimize clearance by ensuring proper needle
placement, monitoring access function, and maintaining prescribed QB.
Q7: Which vascular access type typically provides the best long-term patency and
lowest infection risk for hemodialysis patients?
A. Non-tunneled central venous catheter
B. Tunneled cuffed catheter
C. Arteriovenous fistula (AVF) [CORRECT]
, D. Arteriovenous graft (AVG)
Correct Answer: C
Rationale: The AVF (native vein arterialized) has the lowest infection rates, longest
patency (years to decades), and lowest mortality risk per KDOQI guidelines. It's the
preferred access. Catheters (A, B) have high infection/thrombosis rates. AVGs (D) use
synthetic material and have intermediate outcomes. PCTs must protect AVFs from
needle infiltration and trauma.
Q8: During cannulation of an AV fistula, the arterial needle should be placed:
A. Distal to the surgical anastomosis, pointing toward the heart
B. Distal to the anastomosis, pointing toward the venous outflow (antegrade)
[CORRECT]
C. Proximal to the anastomosis in the arterial segment
D. Anywhere in the fistula as long as blood return is adequate
Correct Answer: B
Rationale: The arterial needle is placed distal to the anastomosis (away from the heart)
with bevel up, pointing antegrade (toward venous outflow) to capture arterialized blood
flow. The venous needle is placed proximal (closer to heart), pointing toward venous
return. Reversing this causes recirculation and inadequate dialysis. PCTs must map and
document needle sites to preserve access.
Q9: A patient complains of chest pain, dyspnea, and becomes hypotensive 15 minutes
into dialysis. The PCT observes the venous pressure has dropped significantly. The
most likely complication is:
A. Disequilibrium syndrome
B. Air embolism [CORRECT]
C. Hemolysis
D. Dialyzer reaction
Correct Answer: B