Nursing Elites

1. What does it mean when a medication has a half-life?

• A. It only lasts for 30 minutes after the medication is given
• B. How long it takes for half of the dose to be eliminated from the bloodstream
• C. It is the peak of how effective the medicine is
• D. Drug is greatly reduced before it reaches the systemic circulation

Correct answer: B

Rationale: When a medication has a half-life, it refers to the time it takes for half of the dose to be eliminated from the bloodstream. This parameter is crucial in understanding the duration of action and dosing intervals for medications in clinical practice. Choice A is incorrect as the half-life is not about how long the medication lasts but about elimination from the body. Choice C is incorrect because the half-life is not about the peak effectiveness of the medicine. Choice D is incorrect as it does not accurately define the concept of half-life.

2. What is the primary use of lithium?

• A. Lower blood glucose
• B. Slow the heart rate
• C. Stabilize mood
• D. Heal ulcers

Correct answer: C

Rationale: The correct answer is C: Stabilize mood. Lithium is primarily used to stabilize mood, especially in conditions like bipolar disorder. It helps in reducing the frequency and severity of manic episodes, making it an essential medication for mood stabilization. Choices A, B, and D are incorrect as lithium is not used to lower blood glucose, slow the heart rate, or heal ulcers.

3. A client has a prescription for Acyclovir. Which of the following instructions should the nurse include?

• A. Expect to take this medication long-term.
• B. Increase fluid intake during therapy.
• C. Avoid sexual contact while on this medication.
• D. Consult your healthcare provider if you experience nausea.

Correct answer: B

Rationale: The correct instruction for a client taking Acyclovir is to increase fluid intake during therapy. Acyclovir can cause nephrotoxicity, potentially leading to kidney damage. Increasing fluid intake helps prevent this adverse effect by promoting adequate renal function and drug elimination. Choices A, C, and D are incorrect. Acyclovir is usually prescribed for short-term use, there is no need to avoid sexual contact while on the medication, and nausea is not a common side effect that necessitates immediate consultation with a healthcare provider.

4. A healthcare professional is planning to administer subcutaneous enoxaparin 40 mg using a prefilled syringe of Enoxaparin 40 mg/0.4 mL to an adult client following hip arthroplasty. Which of the following actions should the healthcare professional plan to take?

• A. Expel the air bubble from the prefilled syringe before injecting.
• B. Insert the needle completely into the client's tissue.
• C. Administer the injection in the client's thigh.
• D. Aspirate carefully after inserting the needle into the client's skin.

Correct answer: B

Rationale: Correct Answer: B. When administering enoxaparin, it is essential to insert the needle completely into the client's tissue to ensure a deep subcutaneous injection. This method helps in the appropriate delivery of the medication. Choice A is incorrect because expelling air bubbles is not necessary with subcutaneous injections and may lead to medication loss. Choice C is incorrect as enoxaparin is usually administered in the abdomen, not the thigh. Choice D is incorrect as aspiration is not recommended for subcutaneous injections to avoid trauma or bleeding.

5. A healthcare professional in an emergency unit is reviewing the medical record of a client who is being evaluated for angle-closure glaucoma. Which of the following findings is indicative of this condition?

• A. Insidious onset of painless loss of vision
• B. Gradual reduction in peripheral vision
• C. Severe pain around the eyes
• D. Intraocular pressure 12 mm Hg

Correct answer: C

Rationale: Severe pain around the eyes that radiates over the face is a classic symptom of acute angle-closure glaucoma. This intense pain is often associated with other symptoms such as blurred vision, halos around lights, redness in the eye, and sometimes nausea and vomiting. Immediate medical attention is required to prevent permanent vision loss. Choices A, B, and D are incorrect. Insidious onset of painless loss of vision is more indicative of conditions like macular degeneration. Gradual reduction in peripheral vision is commonly seen in conditions like open-angle glaucoma. An intraocular pressure of 12 mm Hg is within the normal range and is not typical of angle-closure glaucoma.

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