Correct Answer: C

Rationale: The correct answer is C: Hypomagnesemia. 1. Hypertension and cardiac dysrhythmias can be exacerbated by low magnesium levels. 2. Magnesium plays a crucial role in maintaining normal heart rhythm and blood pressure. 3. Hypomagnesemia can lead to cardiac arrhythmias and worsen hypertension. 4. Metabolic acidosis (A) is not directly related to hypertension and dysrhythmias. 5. Hypernatremia (B) and hypercalcemia (D) are less likely to be associated with cardiac issues in this context. In summary, checking for hypomagnesemia is essential due to its direct impact on the client's hypertension and cardiac dysrhythmias.

Correct Answer: A

Rationale: The correct answer is A: White patches on the tonsils. Group A streptococci infection commonly presents with exudative tonsillitis, characterized by the presence of white patches or pus on the tonsils. This is due to the inflammatory response triggered by the bacteria. Hypertrophied tonsils (B), hemorrhage in the tonsils (C), and bleeding in the tonsils (D) are less likely to be visual signs of a streptococcal infection and are more indicative of other conditions or complications. Therefore, white patches on the tonsils are the most specific visual sign associated with group A streptococci tonsillar infection.

Correct Answer: D

Rationale: The correct answer is D: error in word choices. In left hemisphere stroke, language and speech centers are usually affected, leading to aphasia. This results in errors in word choices, difficulty expressing thoughts, and understanding language. Impulsivity and unsafe activities (choice A) are more commonly associated with frontal lobe damage. Motor deficits on the right eye (choice B) and left side of the body (choice C) are typical in strokes affecting the motor cortex, which is located in the contralateral hemisphere.

Correct Answer: C

Rationale: The correct answer is C because morning administration of prednisone mimics the body's natural corticosteroid secretion pattern. Cortisol, a natural corticosteroid, is typically highest in the morning and decreases throughout the day. By taking prednisone in the morning, the client aligns the drug's peak concentration with the body's natural cortisol levels, optimizing its therapeutic effects. Choice A is incorrect because while taking the drug at the same time daily is important for consistency, it does not specifically address the rationale for morning administration. Choice B is incorrect as the effectiveness of prednisone is not solely dependent on its half-life but also on alignment with the body's natural rhythm. Choice D is also incorrect as prednisone can be taken with food and does not necessarily require an empty stomach for optimal absorption.

Correct Answer: B

Rationale: The correct answer is B because it is important for the nurse to communicate directly with the patient, especially when the patient is alert and oriented. Speaking only to the patient's daughter may undermine the patient's autonomy and dignity. It is crucial for the nurse to establish rapport and build a therapeutic relationship with the patient. Making eye contact with the patient (choice A) is a good nonverbal communication technique. Leaning forward while talking with the patient (choice C) shows attentiveness and engagement. Nodding periodically while the patient is speaking (choice D) demonstrates active listening and encourages the patient to continue sharing. However, speaking only to the patient's daughter (choice B) is the incorrect choice as it neglects the patient's role in the conversation and may lead to potential issues in communication and patient-centered care.