Pathophysiology Final Exam

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: B

Rationale: The correct answer is to assess for signs of bleeding or hematoma. After a thoracentesis, it is crucial to monitor for any bleeding or hematoma formation at the puncture site, as this can lead to complications. Monitoring for signs of infection (Choice A) is essential but is usually a delayed concern compared to the immediate risk of bleeding post-procedure. While monitoring vital signs and respiratory status (Choice C) is important, assessing for bleeding takes precedence to address any immediate complications. Instructing the client to rest and limit physical activity (Choice D) is relevant for general post-procedure care but is not the most critical intervention in this scenario.

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: B

Rationale: The correct answer is B: Smoking. Smoking is the primary risk factor for developing lung cancer. Tobacco smoke contains numerous carcinogens that can damage the cells in the lungs, leading to the development of cancer. Alcohol consumption (Choice A), poor diet (Choice C), and environmental exposure (Choice D) can contribute to overall health risks, but they are not the primary risk factors specifically associated with the development of lung cancer.

Correct Answer: C

Rationale: The correct answer is to take the medication at the same time each day to maintain consistent hormone levels. This is crucial for the effectiveness of medroxyprogesterone acetate in treating endometriosis. Choice A is incorrect because there is no specific instruction related to food intake. Choice B is incorrect because discontinuing the medication without consulting a healthcare provider can be harmful. Choice D is unrelated to the administration of medroxyprogesterone acetate and is not a specific consideration for this medication.