Correct Answer: A

Rationale: Rationale: 1. By approaching the patient from the other side, the nurse can assess if the patient has a visual field deficit. 2. This step helps determine if the lack of response is due to a sensory issue. 3. It allows the nurse to rule out unilateral neglect or hemianopsia. 4. Walking to the other side is a basic assessment technique to evaluate visual and sensory deficits in poststroke patients. Other Choices: B. Speaking more loudly and clearly may not address the potential sensory issues the patient is experiencing. C. Waving fingers in front of the patient's face does not provide a comprehensive assessment of visual field deficits. D. Using a picture may be helpful, but addressing the potential visual field deficit should be prioritized first.

Correct Answer: B

Rationale: The correct answer is B: Probenecid (Benemid). Probenecid can increase methotrexate levels, leading to potential toxicity. Methotrexate is primarily eliminated by the kidneys, and Probenecid inhibits renal tubular secretion, causing methotrexate levels to rise. Digoxin (A), theophylline (C), and famotidine (D) do not have significant interactions with methotrexate. In summary, Probenecid is the correct answer as it can increase methotrexate levels through renal tubular secretion inhibition, while the other choices do not have a significant interaction with methotrexate.

Correct Answer: C

Rationale: The correct answer is C: Axon. The axon is the part of the neuron that transmits impulses away from the cell body towards other neurons or target cells. It is coated with a myelin sheath, which helps speed up the transmission of impulses. Dendrites (A) receive signals from other neurons, the neurolemma (B) is the outermost layer of the myelin sheath, and the synapse (D) is the junction between two neurons where neurotransmitters are released. Therefore, the axon is the only part of the neuron specifically responsible for transmitting impulses away from the cell body.

Correct Answer: A

Rationale: Step 1: Regular aerobic exercise helps lower blood pressure by improving heart health and circulation. Step 2: Exercise reduces stress and promotes weight loss, factors that contribute to hypertension control. Step 3: Alcohol consumption can raise blood pressure and should be limited or avoided. Step 4: Smoking and using low-tar cigarettes can still raise blood pressure and have other negative health effects. Step 5: Daily multivitamin supplements do not directly impact blood pressure control.

Correct Answer: D

Rationale: The correct answer is D because Huntington's disease is a neurodegenerative disorder that presents with a triad of symptoms: abnormal involuntary movements (chorea), intellectual decline, and emotional disturbances. Abnormal involuntary movements are a hallmark feature, while cognitive decline and emotional disturbances are also commonly observed. Therefore, all three manifestations are typically present in individuals with Huntington's disease. Choices A, B, and C are incorrect because each of these symptoms alone does not encompass the full spectrum of clinical manifestations seen in Huntington's disease.