Nursing Elites

1. Why is a pulse oximeter attached to Mr. Dizon's finger?

• A. To determine if the patient's hemoglobin level is low and if he requires a blood transfusion
• B. To check the level of the patient's tissue perfusion
• C. To measure the effectiveness of the patient's anti-hypertensive medications
• D. To detect oxygen saturation of arterial blood before symptoms of hypoxemia develop

Correct answer: D

Rationale: A pulse oximeter is used to detect the oxygen saturation levels in arterial blood before the onset of hypoxemia symptoms. This device provides essential information about the effectiveness of oxygen transportation to the body's tissues. Choice A is incorrect because a pulse oximeter does not directly measure hemoglobin levels nor determine the need for a blood transfusion. Choice B is incorrect because a pulse oximeter is designed specifically to assess oxygen saturation, not tissue perfusion. Choice C is incorrect because a pulse oximeter is not used to measure the efficacy of anti-hypertensive medications, but rather to monitor oxygen levels in the blood.

2. What is a major feature of the therapeutic lifestyle changes (TLC) recommended for the treatment of high blood cholesterol?

• A. Avoiding all foods that contain cholesterol
• B. Reducing sodium intake to less than 2 g/day
• C. Limiting total fat intake to less than 30% of energy intake
• D. Limiting saturated fat intake to less than 7% of energy intake

Correct answer: D

Rationale: The correct answer is D, 'Limiting saturated fat intake to less than 7% of energy intake.' This is a central feature of the therapeutic lifestyle changes (TLC) recommended for treating high blood cholesterol. Saturated fats can increase low-density lipoprotein (LDL) cholesterol, a significant risk factor for heart disease. Choice A is incorrect because while it is recommended to limit cholesterol intake, it's not suggested to avoid all foods containing cholesterol entirely in the TLC. Choice B is also incorrect as although reducing sodium intake is beneficial for controlling blood pressure, it's not specifically targeted in the TLC for managing high cholesterol. Lastly, while limiting total fat intake is a healthy guideline, it's not as specific or effective as limiting saturated fat intake, making choice C also incorrect.

3. Which type of assessment evaluates a person's risk of malnutrition by ranking key variables from the medical history and physical examination?

• A. Katz index
• B. integrated assessment
• C. subjective global assessment
• D. nutrition care plan

Correct answer: C

Rationale: The Subjective Global Assessment (SGA) is the correct choice. SGA is a comprehensive tool used to assess an individual's risk of malnutrition by integrating key variables from the medical history, physical examination, and other relevant factors. The Katz index is used to assess activities of daily living, not malnutrition risk. An integrated assessment refers to the overall evaluation process involving multiple assessments. A nutrition care plan is a personalized plan developed based on assessment findings, not the assessment itself.

4. A nurse is instructing a group of clients about nutrition. The nurse should include that which of the following is a trigger for the formation of vitamin D in the body?

• A. Calcium
• B. Vitamin A depletion
• C. Exposure to sunlight
• D. Weight-bearing exercise

Correct answer: C

Rationale: Exposure to sunlight is the trigger for the formation of vitamin D in the body. When the skin is exposed to sunlight, it produces vitamin D. This process is essential for maintaining healthy levels of vitamin D in the body. Calcium (Choice A) is important for bone health but is not the trigger for vitamin D formation. Vitamin A depletion (Choice B) does not directly trigger the formation of vitamin D. Weight-bearing exercise (Choice D) is crucial for bone health but is not directly related to the formation of vitamin D.

5. AIDS enteropathy is most commonly manifested as _____.

• A. abdominal pain and rectal bleeding
• B. diarrhea and weight loss
• C. abdominal bloating and flatulence
• D. rectal fissures and constipation

Correct answer: B

Rationale: AIDS enteropathy typically presents as diarrhea and weight loss due to the impact of HIV on the gastrointestinal tract. While abdominal pain and rectal bleeding (Choice A), abdominal bloating and flatulence (Choice C), and rectal fissures and constipation (Choice D) can occur in some cases, the most common manifestations are diarrhea and weight loss.

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