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Critical Care Exam 2 – Questions & Correct Answers
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Critical Care Exam 2 – Questions & CorrectAnswers
The patient's serum creatinine level is 0.7 mg/dL. The expected BUN level
should be:
a. 1-2 mg/dL.
b. 7-14 mg/dL.
c. 10-20 mg/dL.
d. 20-30 mg/dL. Ans -b. 7-14 mg/dL
The patient's potassium level is 7.0 mEq/L. Besides dialysis, which of the
following actually reduces plasma potassium levels and total body potassium
content safely in a patient with renal dysfunction?
a. Kayexalate
b. Kayexalate with sorbitol
c. Regular insulin
d. Calcium gluconate Ans -a. Kayexalate
The patient has just returned from having an arteriovenous fistula placed. The
patient asks, "When will they be able to use this and take this other catheter
out?" The nurse should reply,
a. "It can be used immediately so the catheter can come out anytime."
b. "It will take 2 to 4 weeks to heal before it can be used."
c. "The fistula will be usable in about 4 to 6 weeks."
d. "The fistula was made using graft material so it depends on the
manufacturer." Ans -c. "The fistula will be usable in about 4 to 6 weeks."
The patient is getting hemodialysis for the second time when he complains of
a headache and nausea and, a little later, of becoming confused. The nurse
realizes these are symptoms of:
a. dialyzer membrane incompatibility.
b. a shift in potassium levels.
c. dialysis disequilibrium syndrome.
d. hypothermia. Ans -c. dialysis disequilibrium syndrome.
Continuous renal replacement therapy (CRRT) differs from conventional
intermittent hemodialysis in that:
a. a hemofilter is used to facilitate ultrafiltration.
, b. it provides faster removal of solute and water.
c. it does not allow diffusion to occur.
d. the process removes solutes and water slowly. Ans -d. the process
removes solutes and water slowly.
The critical care nurse is responsible for monitoring the patient receiving
continuous renal replacement therapy (CRRT). In doing so, the nurse should:
a. assess that the blood tubing is warm to the touch.
b. assess the hemofilter every 6 hours for clotting.
c. cover the dialysis lines to protect them from light.
d. use clean technique during vascular access dressing changes. Ans -a.
assess that the blood tubing is warm to the touch.
Peritoneal dialysis is different from hemodialysis in that peritoneal dialysis:
a. is more frequently used for acute kidney injury.
b. uses the patient's own semipermeable membrane (peritoneal membrane).
c. is not useful in cases of drug overdose or electrolyte imbalance.
d. is not indicated in cases of water intoxication. Ans -b. uses the patient's
own semipermeable membrane (peritoneal membrane).
The patient is admitted with acute kidney injury from a postrenal cause.
Acceptable treatments for that diagnosis include: (Select all that apply.)
a. bladder catheterization.
b. increasing fluid volume intake.
c. ureteral stenting.
d. placement of nephrostomy tubes.
e. increasing cardiac output. Ans -a. bladder catheterization.
c. ureteral stenting.
d. placement of nephrostomy tubes.
Noninvasive diagnostic procedures used to determine kidney function include
which of the following? (Select all that apply.)
a. Kidney, ureter, bladder (KUB) x-ray
b. Renal ultrasound
c. Magnetic resonance imaging (MRI)
d. Intravenous pyelography (IVP)
e. Renal angiography Ans -a. Kidney, ureter, bladder (KUB) x-ray
b. Renal ultrasound
c. Magnetic resonance imaging (MRI)
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