Nursing Elites

1. The most energy-rich nutrient is:

• A. carb
• B. fat
• C. protein
• D. water

Correct answer: B

Rationale: Fat provides 9 kcal per gram, making it the most energy-rich nutrient compared to carbohydrates and proteins, which provide 4 kcal per gram.

2. Each is a portion of the alimentary canal, except one. Which is the exception?

• A. Oral cavity
• B. Pharynx
• C. Larynx
• D. Esophagus

Correct answer: C

Rationale: The correct answer is C, Larynx. The larynx is part of the respiratory system, responsible for voice production and breathing. The alimentary canal is involved in the digestive process and includes structures like the oral cavity (mouth), pharynx, and esophagus. Choices A, B, and D are parts of the alimentary canal, where digestion occurs, making them incorrect answers.

3. Which of the following actions would be of highest priority with regards to the external shunt?

• A. Avoid taking blood pressure or blood sample from the arm with the shunt
• B. Instruct the patient not to exercise the arm with the shunt
• C. Heparinize the shunt daily
• D. Change the dressing of the shunt daily

Correct answer: C

Rationale: Heparinizing the shunt daily (choice C) is the highest priority action as it prevents the formation of blood clots that can occlude the shunt, leading to potential complications such as thrombosis. Avoiding taking blood pressure or blood samples from the arm with the shunt (choice A) is also important, but secondary to heparinizing the shunt. Similarly, instructing the patient not to exercise the arm with the shunt (choice B) can help prevent unnecessary strain on the shunt, but it is not as critical as preventing clot formation. Changing the dressing of the shunt daily (choice D) is a standard nursing care practice to prevent infection, but again, it is not as critical as ensuring the shunt remains patent through daily heparinization.

4. Which of the following is NOT a physiological role of proteins?

• A. Providing resistance to disease
• B. Regulating fluid balance
• C. Repairing tissue
• D. Serving as the primary source of energy

Correct answer: D

Rationale: Proteins play a diverse range of physiological roles in the body, such as providing resistance to disease, regulating fluid balance, and repairing tissues. However, they are not the primary source of energy for the body. Carbohydrates and fats typically fulfill this role. Therefore, choice D is the correct answer, as it is not a function that proteins perform. Conversely, choices A, B, and C are all physiological functions of proteins, making them incorrect responses to this particular question.

5. Patients with kidney stones should increase their intake of:

• A. fluids
• B. vitamin C
• C. oxalates
• D. protein

Correct answer: A

Rationale: Patients with kidney stones should increase their intake of fluids. Increasing fluid intake helps to dilute the urine and reduce the risk of kidney stones forming by flushing out minerals that can crystallize. This promotes the passage of small stones and helps prevent the formation of new ones. Vitamin C and protein intake should be moderated as excessive consumption may lead to the formation of certain types of kidney stones. Oxalates should be limited in the diet as they can contribute to the formation of calcium oxalate stones, a common type of kidney stone.

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