CNSC Practice Questions and Correct Answers the Latest Update and Recommended Versionw
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Course
CNSC
Institution
CNSC
In an intensive care setting, which of the following complications associated with malnutrition is
most likely to occur as a result of the failure to begin nutrition support early in the treatment
regimen?
→ Increased serum levels of protein-bound drugs
Which of the following is the inpatie...
CNSC Practice Questions and Correct
Answers the Latest Update and
Recommended Versionw
In an intensive care setting, which of the following complications associated with malnutrition is
most likely to occur as a result of the failure to begin nutrition support early in the treatment
regimen?
→ Increased serum levels of protein-bound drugs
Which of the following is the inpatient glycemic target for critically ill patients?
1: 80-110 mg/dL
2: 140-180 mg/dL
3: 181-210 mg/dL
4: 211-240 mg/dL
→ 2: 140-180 mg/dL
→
→ Targets <110mg/dL are not recommended
Under conditions of sepsis and stress, which of the following metabolic alterations are most
likely to occur?
1: Increased glucose production and increased glucose uptake
2: Increased glucose production and decreased glucose uptake
3: Decreased glucose production and decreased glucose uptake
4: Decreased glucose production and increased glucose uptake
→ 2: Increased glucose production and decreased glucose uptake
→
→ Stress hormones induce insulin resistance and hyperglycemia is commonly observed
with nutrition support. It is recommended that glucose levels be adequately controlled
to avoid polyuria and electrolyte disturbances.
Which of the following immunomodulating nutrients may be harmful in patients with severe
sepsis?
1: Arginine
2: Selenium
3: Nucleic acids
4: Omega-3 fatty acids
→ 1: Arginine
→
→ Nitric oxide can be detrimental by leading to coagulation abnormalities and altered
hemodynamic status. In this case, arginine could be considered harmful. Because of
these effects, there is still much debate over the value of arginine in nutrition support
for critically ill patients.
Which of the following best describes enteral glutamine supplementation in the critically ill
→ 4: have no effect on preservation of lean body mass.
→
→ Although patients with burns have increased needs, feeding in excess of energy
expenditure may cause hyperglycemia, hepatic steatosis, and prolonged ventilator
dependence. One study of critically ill burn patients showed that caloric delivery
beyond 1.2 x measured resting energy expenditure did not conserve lean body mass
but was associated with increased fat mass accumulation.
In pulmonary insufficiency, excessive calorie administration may cause increased blood pCO2
resulting in
1: metabolic acidosis.
2: metabolic alkalosis.
3: respiratory acidosis.
4: respiratory alkalosis.
→ 3: respiratory acidosis.
Which of the following is true of essential fatty acid deficiency (EFAD) in patients with cystic
fibrosis (CF)?
1: Routine supplementation of omega-3 fatty acids is essential in the management of CF
2: EFAD usually does not manifest in CF patients until the second decade.
3: CF patients without pancreatic insufficiency rarely develop EFAD
4: EFA profiles have been shown to improve in CF patients after lung transplantation
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