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CNSC Practice Questions with Correct Answers

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  • 2024/2025
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CNSC Practice Questions with Correct Answers 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? - Answer-Increased serum levels of protein-b...

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  • October 3, 2024
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EmillyCharlotte
EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024

CNSC Practice Questions with Correct
Answers

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? - Answer✔✔-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 - Answer✔✔-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


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,EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
4: Decreased glucose production and increased glucose uptake - Answer✔✔-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 - Answer✔✔-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 patient not in multi organ failure?



1: Enteral glutamine decreases mortality


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,EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
2: Enteral glutamine decreases ventilator days

3: Enteral glutamine decreases hospital length of stay

4: Enteral glutamine decreases nosocomial infections - Answer✔✔-4: Enteral

glutamine decreases nosocomial infections

Which of the following are counter-regulatory hormones responsible for the

hypercatabolism observed in critically ill trauma patients?



1: Glycogen, insulin, norepinephrine

2: Glucagon, epinephrine, cortisol

3: Glycerol, serotonin, thymoglobulin

4: Glycerin, leptin, adenosine - Answer✔✔-2: Glucagon, epinephrine, cortisol

In patients with burns, providing caloric support above energy expenditure has been

found to



1: significantly decrease hospital length of stay.

2: improve wound healing and graft success.

3: decrease fat accumulation and steatosis.

4: have no effect on preservation of lean body mass. - Answer✔✔-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

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, EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
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. - Answer✔✔-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 -

Answer✔✔-4: EFA profiles have been shown to improve in CF patients after lung

transplantation




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