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 B

Explanation

This is because the pH of gastric contents is acidic (less than 5.5) and can indicate that the tube is in the stomach. This method is predictive of the correct placement of a nasogastric tube.

Choice A is wrong because fluoroscopy is not the most reliable method to confirm the correct placement of a nasogastric tube. It is an imaging technique that uses X-rays to show the movement of the tube, but it is not always available or feasible.

Choice C is wrong because injecting air and listening for gurgling sounds is not a reliable method to confirm the correct placement of a nasogastric tube. It can cause false-positive results and does not differentiate between the stomach and the respiratory tract.

Choice D is wrong because observing for bubbles after placing the end of the tube in a cup of water is not a reliable method to confirm the correct placement of a nasogastric tube. It can also cause false-positive results and does not differentiate between the stomach and the respiratory tract.

A. Apply them safely and secure to the bed rails. B. Use to protect elderly patients from pulling out tubes and lines as soon as you place them. C. Apply them to clients who have a history of violence or a previous fall for everyone’s protection. D. Use them only as a last resort after attempting alternatives and get an order to do so.

Correct Answer is D

Explanation

Use them only as a last resort after attempting alternatives and get an order to do so. This is because restraints are used to protect persons from harming themselves or others, but they can also cause injuries, falls, and death. Therefore, they should be used only when less restrictive measures fail to protect the person or others, and only with informed consent and a doctor’s order.

Choice A is wrong because restraints should not be secured to the bed rails, but to the movable part of the bed frame out of the person’s reach.

This prevents the person from getting entangled or injured by the restraints.

Choice B is wrong because restraints should not be used for staff convenience or to control or prevent a behavior. They should be used only for the immediate physical safety of the person or others.

Choice C is wrong because restraints should not be applied to clients who have a history of violence or a previous fall for everyone’s protection. They should be used only when there is a clear and present danger of harm to the person or others.

Normal ranges for restraints are:

Check the person at least every 15 minutes
Remove restraints and meet basic needs at least every 2 hours
Apply restraints so that they are snug but allow enough room to fit one finger between the restraint and the wrist

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which technique is most reliable to confirm correct placement of a nasogastric tube prior to initiating tube feedings?

Correct Answer is B

Explanation

When using wrist restraints, which of these statements is correct?

Correct Answer is D

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?