Nursing Elites

1. A client has a new prescription for Brimonidine ophthalmic drops and wears soft contact lenses. Which of the following instructions should the nurse include in the teaching?

• A. This medication can stain your contacts.
• B. This medication can cause your pupils to constrict.
• C. This medication can absorb into your contacts.
• D. This medication can slow your heart rate.

Correct answer: C

Rationale: The correct answer is C. Brimonidine can absorb into soft contact lenses. To prevent this, the client should remove their contacts, instill the medication, and wait at least 15 minutes before putting the contacts back in to avoid potential absorption of the medication by the lenses. Choices A, B, and D are incorrect because Brimonidine's main concern with contact lenses is its absorption into the lenses rather than staining contacts, causing pupil constriction, or affecting heart rate.

2. Potassium-sparing diuretics primarily affect which part of the kidney?

• A. Proximal convoluted tubule
• B. Loop of Henle
• C. Collecting duct
• D. Distal convoluted tubule

Correct answer: D

Rationale: Potassium-sparing diuretics exert their primary effects on the distal convoluted tubule in the kidney. By acting on this specific part of the nephron, these diuretics promote sodium excretion while sparing potassium, thus helping to maintain potassium levels in the body. This mechanism differs from other diuretics that may cause potassium loss as a side effect. Understanding the site of action of potassium-sparing diuretics is crucial in clinical practice for managing conditions like hypertension and edema where diuresis is necessary without the risk of hypokalemia.

3. When educating a client who has a new prescription for Levothyroxine to treat hypothyroidism, which of the following instructions should be included?

• A. Take the medication first thing in the morning before eating.
• B. Take the medication at bedtime to avoid drowsiness.
• C. Take the medication with food to prevent nausea.
• D. Take the medication with a glass of milk.

Correct answer: A

Rationale: Levothyroxine should be taken first thing in the morning before eating to ensure optimal absorption. Taking it on an empty stomach helps prevent interactions with food or other medications that may decrease its effectiveness. It is important to follow this timing recommendation to maintain consistent thyroid hormone levels in the body. Choice B is incorrect as taking Levothyroxine at bedtime may lead to inconsistent absorption and affect its efficacy. Choice C is incorrect because taking Levothyroxine with food can interfere with its absorption. Choice D is incorrect as Levothyroxine should be taken with a full glass of water, not milk, to aid in proper absorption.

4. A nurse in a clinic is caring for a group of clients. The nurse should contact the provider about a potential contraindication to a medication for which of the following clients? (Select all that apply.)

• A. A client at 8 weeks of gestation who asks for an Influenza immunization
• B. A client who takes Prednisone and has a possible Fungal infection
• C. A client who has chronic liver disease and is taking Hydrocodone
• D. A client who has Peptic Ulcer Disease, takes Sucralfate, and tells the nurse she has started taking OTC Aluminum Hydroxide

Correct answer: B

Rationale: Prednisone, a glucocorticoid, should not be taken by a client who has a possible systemic fungal infection as it can worsen the infection. This combination can suppress the immune response, allowing the fungal infection to proliferate. Therefore, the nurse should contact the provider regarding this potential contraindication to medication. The other options do not present a contraindication related to the medication interactions described in the question.

5. 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.

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