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 client with cardiovascular disease is scheduled to receive a daily dose of furosemide (Lasix). Which potassium level would cause the nurse to contact the physician before administering the dose?

• A. 3.0 mEq/L
• B. 3.8 mEq/L
• C. 4.2 mEq/L
• D. 5.1 mEq/L

Correct answer: A

Rationale: The normal serum potassium level in adults ranges from 3.5 to 5.1 mEq/L. A potassium level of 3.0 mEq/L is low, indicating hypokalemia and necessitating physician notification before administering furosemide, a loop diuretic that can further lower potassium levels. Potassium levels of 3.8 and 4.2 mEq/L are within the normal range, while a level of 5.1 mEq/L is high (hyperkalemia), but the critical value in this case is the low potassium level that requires immediate attention to prevent potential complications.

3. Healthcare workers must protect themselves against becoming infected with HIV. The Center for Disease Control has issued guidelines for healthcare workers in relation to protection from HIV. These guidelines include which recommendation?

• A. Place HIV-positive clients in strict isolation and limit visitors.
• B. Wear gloves when coming in contact with the blood or body fluids of any client.
• C. Conduct mandatory HIV testing of those who work with clients with AIDS.
• D. Freeze HIV blood specimens at -70°F to kill the virus.

Correct answer: B

Rationale: The correct answer is B. The CDC guidelines recommend that healthcare workers wear gloves when coming in contact with blood or body fluids from any client since HIV can be infectious before the client becomes aware of their exposure and/or symptomatic. Choice A is incorrect because placing HIV-positive clients in strict isolation and limiting visitors is not a standard practice for HIV infection control. Choice C is incorrect as mandatory HIV testing for those working with AIDS clients is not a CDC recommendation for routine infection control. Choice D is incorrect because freezing HIV blood specimens at -70°F does not kill the virus; HIV can remain infectious even at very low temperatures.

4. A postmenopausal client asks the nurse why she is experiencing discomfort during intercourse. What response is best for the nurse to provide?

• A. Estrogen deficiency causes the vaginal tissues to become dry and thinner.
• B. Infrequent intercourse results in the vaginal tissues losing their elasticity.
• C. Dehydration from inadequate fluid intake causes vulva tissue dryness.
• D. Lack of adequate stimulation is the most common reason for dyspareunia.

Correct answer: A

Rationale: Estrogen deficiency in postmenopausal clients leads to a decrease in the moisture-secreting capacity of vaginal cells. This results in vaginal tissues becoming thinner, drier, and smoother, which reduces vaginal stretching and contributes to discomfort during intercourse. Choice B is incorrect because the primary reason for discomfort is not infrequent intercourse but rather physiological changes due to estrogen deficiency. Choice C is incorrect as dehydration may cause dryness but is not the primary reason for discomfort in this scenario. Choice D is incorrect as lack of stimulation is not the most common reason for dyspareunia in postmenopausal clients; estrogen deficiency is the key factor.

5. A nurse is conducting an assessment of a client who underwent thoracentesis of the right side of the chest 3 hours ago. Which findings does the nurse report to the physician? Select all that apply.

• A. Unequal chest expansion
• B. Pulse rate of 82 beats/min
• C. Respiratory rate of 22 breaths/min
• D. Diminished breath sounds in the right lung

Correct answer: A

Rationale: After thoracentesis, the nurse should assess the client for signs of pneumothorax, which include increased respiratory rate, dyspnea, retractions, unequal chest expansion, diminished breath sounds, and cyanosis. Unequal chest expansion is a key sign of pneumothorax due to the accumulation of air in the pleural space, causing the affected lung to collapse partially. Pulse rate and respiratory rate within normal ranges, like in choices B and C, are not the priority findings to report in this situation. Diminished breath sounds in the right lung could be expected after thoracentesis and may not necessarily indicate a complication like pneumothorax, making choice D less urgent to report.

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