Correct Answer: A

Rationale: The correct technique for measuring blood pressure manually involves using a stethoscope to listen for the Korotkoff sounds. Choice B, ensuring the patient is seated with the arm supported, is important but not the specific technique for measuring blood pressure. Choice C, using a manual sphygmomanometer, is a necessary tool but not the technique itself. Choice D, deflating the cuff slowly while listening to the heartbeat, is not the correct technique as the deflation should be done while listening for the Korotkoff sounds to determine the systolic and diastolic blood pressure readings.

Correct Answer: A

Rationale: Ethics is the correct answer because it specifically deals with the study of conduct and character. Ethics is a branch of philosophy that involves systematizing, defending, and recommending concepts of right and wrong conduct. While justice and morals are related to ethical considerations, they do not directly represent the study of conduct and character. Non-maleficence is a principle in medical ethics related to avoiding harm.

Correct Answer: A

Rationale: In the case of a patient experiencing acute chest pain, the initial response should include administering prescribed nitroglycerin. Nitroglycerin helps dilate blood vessels and improve blood flow to the heart, which can be beneficial in managing chest pain related to cardiac issues. Providing oxygen can also be helpful to support oxygenation. However, the priority in this scenario is to address the potential cardiac cause by administering nitroglycerin. Calling for emergency assistance is crucial if the patient's condition does not improve or deteriorates. Reassuring the patient is essential for emotional support but should not be the primary intervention in the case of acute chest pain.

Correct Answer: B

Rationale: The correct answer is B: Hypervigilance. Individuals with PTSD often experience hypervigilance, which involves being overly alert, easily startled, and constantly scanning their environment for potential threats. This heightened state of awareness is a common response to the trauma experienced. Choices A, C, and D are incorrect. Hyperactivity is not typically a primary manifestation of PTSD; restlessness may occur but is not as characteristic as hypervigilance, and although avoidance of social situations can be a symptom of PTSD, hypervigilance is more directly associated with the disorder.

Correct Answer: B

Rationale: The correct answer is lack of sleep (choice B). In acute mania, lack of sleep can exacerbate symptoms, lead to exhaustion, and pose serious risks to the client's well-being. Addressing the client's sleep deprivation is a priority as it can impact their overall health and recovery. Increased speech (choice A) and agitation (choice C) are common in acute mania but do not pose immediate physical risks like lack of sleep. Poor concentration (choice D) is also a symptom of acute mania but addressing sleep deprivation takes precedence due to its severe consequences.