Correct Answer: A

Rationale: The correct answer is the Hypothalamus. The hypothalamus is responsible for regulating body temperature, ensuring it stays within a narrow range. Moreover, the hypothalamus controls various essential bodily functions, such as hunger, thirst, and circadian rhythms. Choices B, C, and D are incorrect because the Pituitary Gland primarily produces and releases hormones, the Pons is involved in functions like sleep, respiration, and bladder control, and the Medulla Oblongata controls vital functions like breathing and heart rate, but not body temperature regulation.

Correct Answer: A

Rationale: Body language is a powerful form of non-verbal communication that can convey various emotions. In this scenario, the patient's slumped shoulders, grimace, and stiff joints suggest a negative emotional state. Anger is the correct answer because grimacing and tense posture are commonly associated with anger. Choice B, 'Aloofness,' is incorrect as aloofness is more related to disinterest or detachment, which is not indicated by the described body language. Choice C, 'Empathy,' is incorrect as the body language described does not align with expressing understanding or compassion towards others. Choice D, 'Depression,' is incorrect as while depression can also manifest through body language, the specific cues given in the scenario lean more towards anger than depression.

Correct Answer: A

Rationale: Before starting medications for essential hypertension, a patient would typically present with a blood pressure reading equal to or greater than 140/90. This indicates high blood pressure and is characteristic of essential hypertension. Choice A, 142/92, falls within this range, making it the correct answer. Choices B (118/72), C (120/80), and D (138/88) all have blood pressure readings that are within the normal range and would not typically be expected in a patient diagnosed with essential hypertension. Therefore, choices B, C, and D are incorrect as they do not align with the elevated blood pressure levels seen in essential hypertension.

Correct Answer: A

Rationale: The best candidate for discharge during a need for emergency room availability is a stable patient with a chronic condition who is familiar with their care. In this scenario, the middle-aged client in option A, who has been ventilator dependent for over seven years and admitted with bacterial pneumonia five days ago, is most suitable for discharge. This client is likely stable and can continue medication therapy at home, making them the most appropriate choice for discharge at this time. Choice B should not be the priority for discharge as the young adult with diabetes mellitus Type 2 admitted with antibiotic-induced diarrhea 24 hours ago may need further monitoring and management of their condition. Choice C, the elderly client with multiple comorbidities and admitted with Stevens-Johnson syndrome on the same day, is not a suitable candidate for immediate discharge as they may require ongoing medical attention and observation. Choice D, the adolescent with a positive HIV test and admitted for acute cellulitis of the lower leg 48 hours ago, should not be discharged first as acute cellulitis may require continued treatment and monitoring, especially in the context of a positive HIV status.

Correct Answer: C

Rationale: The correct action to help prevent a fire in a healthcare setting is to notify visitors or post signs indicating that oxygen is in use in certain areas. Oxygen is a combustible material, and awareness of its presence is crucial to prevent fire hazards. By informing all individuals in the facility about the use of oxygen through clear signs or notifications, the risk of improper use and potential fire accidents can be minimized. Choice A is incorrect because using an adaptor when plugging in client equipment is not directly related to fire prevention. Choice B is also incorrect as marking faulty equipment and using it until inspection does not directly address fire prevention. Choice D is not a recommended action for fire prevention; storing extra equipment with supplies does not address the specific fire risk associated with oxygen use.