A client is scheduled for a “total serum cholesterol” lab test.
Which instruction to the client should be discussed to ensure adequate preparation for the test?

Do not eat or drink for 12 hours prior to the test.

Eliminate all dietary cholesterol for one week before this test.

Avoid caffeinated beverages for several days prior to the test.

Stop eating eggs and drinking milk for two days before the test.

Answer and Explanation

The Correct Answer is A

Do not eat or drink for 12 hours prior to the test. This is because fasting is required for a total serum cholesterol test to get accurate results. Fasting means not eating or drinking anything except water for 9 to 12 hours before the test.

Choice B is wrong because eliminating all dietary cholesterol for one week before the test is not necessary and will not affect the test results. Dietary cholesterol only accounts for a small portion of the total cholesterol in the blood.

Choice C is wrong because avoiding caffeinated beverages for several days prior to the test is not required and will not influence the test results. Caffeine does not affect cholesterol levels.

Choice D is wrong because stopping eating eggs and drinking milk for two days before the test is not needed and will not change the test results. Eggs and milk contain cholesterol, but they also have other nutrients that may lower the risk of heart disease.

Normal ranges for total serum cholesterol are less than 200 mg/dL (5.18 mmol/L) for adults. Higher levels may indicate an increased risk of heart disease and stroke.

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Correct Answer is C

Explanation

Determining whether chest pain has been relieved. This is because nitroglycerin is a medication that is used to treat chest pain caused by cardiac origin or acute pulmonary edema. The main action of nitroglycerin is to relax and dilate the blood vessels, which reduces the workload of the heart and improves blood flow to the heart muscle.

Therefore, the most important nursing action after administering nitroglycerin sublingually is to assess if the chest pain has subsided or not.

Choice A is wrong because monitoring the client’s respiratory rate and effort is not the most important action after giving nitroglycerin. Although nitroglycerin can cause hypotension and bradycardia, which may affect the respiratory status, these are side effects that can be managed and are not life-threatening as chest pain.

Choice B is wrong because warning the client to lie still to prevent a headache is not a priority after giving nitroglycerin. Nitroglycerin can cause headache as a side effect, but this can be treated with analgesics and does not require the client to lie still. Moreover, lying still may increase the risk of venous thromboembolism in a client with peripheral vascular disease.

Choice D is wrong because verifying that the sublingual tablet produced a tingling sensation is not essential after giving nitroglycerin.

Although some sublingual tablets may produce a tingling sensation, this is not a reliable indicator of the drug’s effectiveness

A. Decreases risk of skin breakdown behind the knee. B. Eliminates pain of arthritis of the lower legs. C. Prevents pressure on the popliteal artery. D. Avoids irritation of the knee joints.

Correct Answer is C

Explanation

The popliteal artery is a major blood vessel that runs behind the knee and supplies blood to the lower leg. Sitting with knees crossed can compress this artery and reduce blood flow to the leg.

This can cause numbness, tingling, or pain in the leg. It can also increase the risk of blood clots or varicose veins.

Choice A is wrong because sitting with knees crossed does not decrease the risk of skin breakdown behind the knee. In fact, it may increase the risk by causing friction or pressure on the skin.

Choice B is wrong because sitting with knees crossed does not eliminate the pain of arthritis in the lower legs.

Arthritis is a joint inflammation that causes pain, stiffness, and swelling. Sitting with knees crossed can worsen these symptoms by putting more stress on the knee joints.

Choice D is wrong because sitting with knees crossed does not avoid irritation of the knee joints.

On the contrary, it can cause irritation by overstretching the knee ligaments and muscles

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A client is scheduled for a “total serum cholesterol” lab test. Which instruction to the client should be discussed to ensure adequate preparation for the test?

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Naxlex Comprehensive Predictor Exams

Which nursing action is most important after administering nitroglycerin sublingually?

Correct Answer is C

Explanation

A nurse should include which rationale when instructing a client to avoid sitting with knees crossed?

Correct Answer is C

Explanation

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A client is scheduled for a “total serum cholesterol” lab test.
Which instruction to the client should be discussed to ensure adequate preparation for the test?