Correct Answer: A

Rationale: The correct action for the nurse to take first is to check the client's blood glucose level. This is crucial to determine if the symptoms are a result of hypoglycemia or hyperglycemia, which requires immediate attention to maintain the client's health and the health of the developing fetus.

Correct Answer: A

Rationale: The correct answer is A: Tardive dyskinesia. Haloperidol (Haldol) is an antipsychotic medication that can lead to tardive dyskinesia, a side effect characterized by involuntary, repetitive movements of the face and body. Monitoring for this side effect is crucial to provide timely interventions and prevent further complications.

Correct Answer: C

Rationale: Administering IV adenosine is the appropriate intervention for a client with symptomatic tachycardia to restore normal sinus rhythm. Adenosine is a medication used to treat supraventricular tachycardia (SVT) by interrupting the reentry pathways through the AV node and restoring normal sinus rhythm. It is a rapid-acting medication given as a rapid IV push followed by a saline flush. The dose is typically administered in a healthcare setting where cardiac monitoring is available due to its potential to cause transient asystole.

Correct Answer: C

Rationale: A widened, tense, bulging fontanel is a critical finding in a newborn as it can indicate increased intracranial pressure. This condition requires immediate attention and intervention to prevent further complications. Monitoring fontanel status is crucial in assessing the newborn's neurological well-being and ensuring early detection of potential issues.

Correct Answer: C

Rationale: Administering on-call sedation is crucial before a bronchoscopy to ensure the client is comfortable and adequately prepared for the procedure. Sedation helps reduce anxiety, discomfort, and ensures the client remains still during the bronchoscopy, enabling the healthcare provider to perform the procedure effectively.