Nursing Elites

1. What is the primary action of insulin in the body?

• A. To lower blood pressure.
• B. To promote the absorption of glucose into cells.
• C. To increase blood glucose levels.
• D. To decrease blood glucose levels.

Correct answer: B

Rationale: The correct answer is B: To promote the absorption of glucose into cells. Insulin facilitates the uptake of glucose by cells, thereby decreasing blood glucose levels. Choice A is incorrect as insulin does not directly affect blood pressure. Choice C is inaccurate as insulin works to lower, not increase, blood glucose levels. Choice D is incorrect because insulin's primary role is to lower, not increase, blood glucose levels by promoting glucose uptake into cells.

2. A nurse reviews a client’s urinalysis report. Which finding does the nurse recognize as abnormal?

• A. pH of 6.0
• B. An absence of protein
• C. The presence of ketones
• D. Specific gravity of 1.018

Correct answer: C

Rationale: The correct answer is C. The presence of ketones in the urine is abnormal. Ketones in the urine may indicate a state of ketosis, which is commonly seen in uncontrolled diabetes, fasting, or a low-carbohydrate diet. A normal pH range of urine is 4.5 to 7.8, making a pH of 6.0 within the normal range. An absence of protein is a normal finding in urine, as proteinuria (presence of protein) is abnormal. A specific gravity of 1.018 falls within the normal range of 1.016 to 1.022. Therefore, the presence of ketones is the abnormal finding in this scenario.

3. A healthcare professional reviews the allergy list of a client scheduled for an intravenous urography. Which client allergy should prompt urgent contact with the healthcare provider?

• A. Seafood
• B. Penicillin
• C. Bee stings
• D. Red food dye

Correct answer: A

Rationale: Clients with seafood allergies should alert healthcare professionals to urgently contact the healthcare provider before an intravenous urography. The standard dyes used in this procedure can trigger severe allergic reactions in individuals with seafood allergies. Penicillin, bee stings, and red food dye allergies do not pose a direct threat during intravenous urography, making them less critical for immediate intervention.

4. A client without a history of respiratory disease has a pulse oximeter in place after surgery. The nurse monitors the pulse oximeter readings to ensure that oxygen saturation remains above:

• A. 85%
• B. 89%
• C. 95%
• D. 100%

Correct answer: C

Rationale: Pulse oximetry is a noninvasive method of continuously monitoring the oxygen saturation of hemoglobin (SaO2). In the absence of underlying respiratory disease, the expected oxygen saturation level is at least 95%. Oxygen saturation levels below 95% may indicate hypoxemia, which can compromise tissue perfusion and oxygen delivery to vital organs. Therefore, maintaining oxygen saturation above 95% is crucial to ensure adequate oxygenation post-surgery. Choices A, B, and D are incorrect as they represent oxygen saturation levels that are below the expected value for a client without a history of respiratory disease, which should be at least 95%.

5. The client is being educated by the healthcare provider about risk factors associated with atherosclerosis and methods to reduce the risk. Which of the following is a risk factor that the client cannot modify?

• A. Diabetes
• B. Age
• C. Exercise level
• D. Dietary preferences

Correct answer: B

Rationale: Age is a nonmodifiable risk factor for atherosclerosis because it is a natural part of the aging process. While lifestyle factors such as diabetes, exercise level, and dietary preferences can be modified to reduce the risk of atherosclerosis, age cannot be altered. Therefore, age is the correct answer. Diabetes, exercise level, and dietary preferences can all be improved or managed through interventions and lifestyle changes to mitigate the risk of atherosclerosis.

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