Correct Answer: A

Rationale: Hypertrophic scarring occurs when a scar is raised but remains within the boundaries of the original wound, unlike keloids, which extend beyond the wound edges. Dehiscence refers to the separation of wound edges, while contracture involves the tightening or constriction of a scar, leading to limited mobility.

Correct Answer: D

Rationale: When serotonin levels increase, more neurotransmitters will cross the synaptic cleft and bind with postsynaptic receptors, facilitating enhanced communication. Option A is incorrect because chemical synapses, unlike electrical synapses, are unidirectional. Option B is incorrect because neurotransmitters impact communication with multiple neurons, not just a single connected neuron. Option C is incorrect because neurotransmitters cross the synaptic cleft, not gap junctions.

Correct Answer: A

Rationale: The correct answer is A: Clarithromycin. In the case of Mycobacterium avium complex disease, a common treatment regimen includes a macrolide antibiotic like clarithromycin or azithromycin in combination with other antimicrobials. Clarithromycin is a key component of the treatment due to its effectiveness against Mycobacterium avium complex.
Choice B (Pyrazinamide) is not typically part of the standard treatment for this condition.
Choice C (Rifapentine) is mainly used in tuberculosis treatment and is not a primary agent for Mycobacterium avium complex disease.
Choice D (Azithromycin) is another suitable macrolide antibiotic for treating Mycobacterium avium complex disease but is not the medication typically used first-line.

Correct Answer: C

Rationale: The correct answer is C: 'The patient should be observed for anaphylaxis for 30 minutes after administration.' This is because anaphylaxis can occur within minutes of administration of an immunization. By observing the patient for 30 minutes, the nurse can promptly identify and manage any signs of anaphylaxis.

Choices A, B, and D are incorrect as they suggest shorter or longer observation periods, which may not be sufficient to detect and respond to anaphylaxis in a timely manner.

Correct Answer: A

Rationale: The correct instruction the nurse should provide regarding the use of medroxyprogesterone acetate (Provera) for endometriosis is to take the medication at the same time each day. This helps to maintain consistent hormone levels and ensures the effectiveness of the treatment.
Choice B is incorrect because medroxyprogesterone should be taken without regard to meals.
Choice C is incorrect because side effects should be reported to the healthcare provider for evaluation rather than discontinuing the medication without medical advice.
Choice D is incorrect as medroxyprogesterone is usually taken daily, not weekly, for the treatment of endometriosis.