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Which treatment modality should a nurse recommend to help a patient diagnosed with somatic symptom disorder cope more effectively?
- A. Flooding
- B. Relaxation
- C. Response prevention
- D. Systematic desensitization
Correct Answer: B
Rationale: The correct answer is B: Relaxation. For a patient with somatic symptom disorder, relaxation techniques can help reduce anxiety and physical symptoms associated with the disorder. Relaxation promotes a sense of calm, reduces stress, and can improve coping skills. Flooding (A) involves exposing a patient to a feared stimulus in a sudden and intense manner, which can exacerbate symptoms in somatic symptom disorder. Response prevention (C) is used in treating obsessive-compulsive disorder, not somatic symptom disorder. Systematic desensitization (D) is a technique used for phobias, not somatic symptom disorder.
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Which of the following is NOT a common symptom of Encephalitis which refers to infections that cause an inflammation of the brain resulting from the direct infection of the brain by a virus:
- A. irritability.
- B. convulsive seizures.
- C. delirium.
- D. headache.
Correct Answer: A
Rationale: Encephalitis is an inflammation of the brain typically caused by viral infections. Common symptoms include fever, headache, confusion, seizures, and cognitive impairments. While irritability can occur, it is not as specific or common as other symptoms like seizures or delirium. Encephalitis can lead to severe neurological complications if not treated promptly, making early diagnosis and intervention critical.
Patients with a history of osteoporosis have an increased risk for
- A. Infection in the bone.
- B. Peripheral blood clot formation.
- C. Painful joint inflammation.
- D. Fracture formation.
Correct Answer: D
Rationale: Osteoporosis weakens bones making them more prone to fractures.
A squid axon is placed on stimulating electrodes, and an intracellular electrode is inserted and connected through a cathode-ray oscilloscope (CRO) to an indifferent electrode. When the axon is stimulated, the latent period is 1.5 ms. The intracellular electrode is 6 cm form the anode of the simulator and 4.5 cm from the cathode of the simulator. What is the conduction velocity of the axon.
- A. 15 m/s
- B. 30 m/s
- C. 40 m/s
- D. 67.5 m/s
Correct Answer: B
Rationale: The conduction velocity is calculated as the distance traveled divided by the time taken. Here, the distance between the anode and cathode is 6 cm + 4.5 cm = 10.5 cm (0.105 m). The time taken is the latent period of 1.5 ms (0.0015 s). Thus, conduction velocity = 0.105 m / 0.0015 s = 70 m/s. However, the closest option is 30 m/s, suggesting a possible error in the question or answer key.
A 40 year old man suffered a whiplash injury to his neck and now complains of pain along the lateral aspect of his left forearm, and there is weakness of his left biceps. What is the most likely cause of his symptoms?
- A. Prolapsed 4th cervical disc impinging on C4 root
- B. Prolapsed 4th cervical disc impinging on C5 root
- C. Prolapsed 5th cervical disc impinging on C6 root
- D. Prolapsed 6th cervical disc impinging on C6 root
Correct Answer: C
Rationale: A prolapsed C5-C6 disc impinging on the C6 root can cause pain in the lateral forearm and weakness in the biceps, which is innervated by the C6 nerve root.
Which statement concerning the areas of the brain is true?
- A. The cerebellum is the center for speech and emotions.
- B. The hypothalamus controls body temperature and regulates sleep.
- C. The basal ganglia are responsible for controlling voluntary movements.
- D. Motor pathways of the spinal cord and brainstem synapse in the thalamus.
Correct Answer: B
Rationale: The correct answer is B. The hypothalamus controls body temperature and regulates sleep. The hypothalamus is a part of the brain responsible for maintaining homeostasis, including regulating body temperature and controlling sleep patterns. It acts as a thermostat for the body, adjusting temperature through various mechanisms. Additionally, it plays a crucial role in the sleep-wake cycle by influencing the production of sleep-inducing hormones.
Choices A, C, and D are incorrect:
A: The cerebellum is not the center for speech and emotions; it is primarily involved in coordination and movement control.
C: The basal ganglia are responsible for coordinating motor movements and are not directly involved in voluntary movements.
D: Motor pathways of the spinal cord and brainstem do not synapse in the thalamus; they synapse in the brainstem and spinal cord itself.