what laboratory value would be considered a high risk measure for coronary heart disease assessment

ATI RN

ATI Nutrition Proctored

1. What laboratory value would be considered a high-risk measure for coronary heart disease assessment?

A. triglycerides > 150 mg/dL
B. BMI > 31
C. LDL cholesterol < 128 mg/dL
D. blood pressure of 128/82 mmHg

Correct answer: B

Rationale: The correct answer is B: BMI > 31. A BMI over 31 is considered a high-risk factor for coronary heart disease as it indicates obesity, which is strongly linked to cardiovascular issues. Triglycerides > 150 mg/dL (choice A) can contribute to heart disease risk but are not as specific as BMI in assessing overall risk. LDL cholesterol < 128 mg/dL (choice C) is actually a desirable level, indicating lower risk. A blood pressure of 128/82 mmHg (choice D) is within normal range and not a high-risk measure specifically for coronary heart disease.

2. Which enzyme is most essential for the digestion of triglycerides found in butterfat?

A. Gastric lipase
B. Pepsin
C. Mucus
D. Intrinsic factor

Correct answer: A

Rationale: The correct answer is A: Gastric lipase. Gastric lipase is crucial for the digestion of short- and medium-chain triglycerides, such as those found in butterfat. Pepsin is involved in protein digestion, not lipid digestion. Mucus acts as a protective barrier in the stomach and does not play a direct role in lipid digestion. Intrinsic factor is involved in the absorption of vitamin B12 and is not related to the digestion of triglycerides.

3. Can bacterial plaque metabolize sucrose, lactose, and fructose? Is fructose, also known as levulose and found naturally in honey, less cariogenic than sucrose and lactose?

A. Yes, bacterial plaque can metabolize these sugars, but no, fructose is not less cariogenic.
B. No, bacterial plaque cannot metabolize these sugars, and fructose is not less cariogenic.
C. Yes, bacterial plaque can metabolize these sugars, but no, fructose is not less cariogenic.
D. No, bacterial plaque cannot metabolize these sugars, but yes, fructose is less cariogenic.

Correct answer: A

Rationale: The first statement is correct as bacterial plaque can indeed metabolize sucrose, lactose, and fructose. However, the second statement is inaccurate. Fructose, despite being found naturally in honey and known also as levulose, is not less cariogenic than either sucrose or lactose. This means that its consumption does not result in fewer cavities or tooth decay. Therefore, the correct answer is that bacterial plaque can metabolize these sugars, but fructose is not less cariogenic. Choices B, C, and D are incorrect because they either wrongly assert that bacterial plaque cannot metabolize these sugars or wrongly claim that fructose is less cariogenic.

4. The PACU nurse will maintain postoperative T and A client in what position?

A. Supine with neck hyperextended and supported with pillow
B. Prone with the head on pillow and turned to the side
C. Semi-fowlerâ€™s with neck flexed
D. Reverse trendelenburg with extended neck

Correct answer: B

Rationale: Nursing interventions should be grounded in a deep understanding of the physiological processes involved, ensuring that care provided is both effective and efficient.