Nursing Elites

1. A client is brought to the emergency department by a neighbor. The client is lethargic and has a fruity odor on the breath. The client’s arterial blood gas (ABG) results are pH 7.25, PCO2 34 mm Hg, PO2 86 mm Hg, HCO3 14 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: A

Rationale: The correct answer is 'Metabolic acidosis.' Metabolic acidosis is characterized by a low pH (<7.35) and a low bicarbonate level (HCO3 <22 mEq/L). In this case, the client's ABG results show a pH of 7.25 and an HCO3 level of 14 mEq/L, indicating metabolic acidosis. The PCO2 of 34 mm Hg is normal, ruling out respiratory acidosis or alkalosis. The PO2 of 86 mm Hg is also within the normal range and is not indicative of a respiratory problem. Therefore, the client is experiencing metabolic acidosis based on the ABG results provided.

2. A nurse reviews laboratory results for a client with glomerulonephritis. The client’s glomerular filtration rate (GFR) is 40 mL/min as measured by a 24-hour creatinine clearance. How should the nurse interpret this finding? (Select all that apply.)

• A. Excessive GFR
• B. Reduced GFR
• C. Fluid retention and risks for hypertension
• D. Pulmonary edema

Correct answer: B

Rationale: A GFR of 40 mL/min indicates a reduced glomerular filtration rate. In a healthy adult, the normal GFR ranges between 100 and 120 mL/min. A GFR of 40 mL/min signifies a significant reduction, leading to fluid retention and risks for hypertension and pulmonary edema due to excess vascular fluid. Choices A, C, and D are incorrect. Choice A is incorrect as a GFR of 40 mL/min is not excessive but rather reduced. Choices C and D do not directly address the interpretation of GFR but instead describe potential consequences of a reduced GFR.

3. A client with type 1 diabetes mellitus has influenza. The nurse should instruct the client to:

• A. Increase the frequency of self-monitoring (blood glucose testing).
• B. Reduce food intake to alleviate nausea.
• C. Discontinue the insulin dose if unable to eat.
• D. Take the normal dose of insulin.

Correct answer: A

Rationale: During illness, individuals with type 1 diabetes mellitus may experience increased insulin requirements due to factors such as stress and the release of counterregulatory hormones. Increasing the frequency of self-monitoring, as stated in choice A, is crucial to closely monitor and adjust insulin doses as needed. Choice B, reducing food intake to alleviate nausea, is incorrect as it may lead to hypoglycemia and does not address the increased insulin needs during illness. Choice C, discontinuing the insulin dose if unable to eat, is dangerous as it can result in uncontrolled hyperglycemia. Choice D, taking the normal dose of insulin, may not be sufficient during illness when insulin requirements are likely elevated.

4. The patient will begin taking doxycycline to treat an infection. When should the nurse plan to give this medication?

• A. 1 hour before or 2 hours after a meal.
• B. with an antacid to minimize GI irritation.
• C. with food to improve absorption.
• D. with small sips of water.

Correct answer: C

Rationale: Doxycycline is a lipid-soluble tetracycline that is better absorbed when taken with milk products and food. Taking doxycycline with food helps improve its absorption. It should not be taken on an empty stomach, as this can decrease its effectiveness. Antacids can interfere with the absorption of tetracyclines, so they should not be taken together. While it is important to stay hydrated when taking medications, small sips of water are not specifically recommended for doxycycline administration.

5. 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.

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