Correct Answer: D

Rationale: In Maslow's hierarchy of physiological needs, the most basic and immediate need is physiological survival, which includes the need for oxygen. Without oxygen, the body cannot survive for more than a few minutes, making it the highest priority physiological need according to Maslow's hierarchy.

Correct Answer: D

Rationale: Palpating the midclavicular line is the correct technique for assessing the apical pulse. The apical pulse is located at the point of maximal impulse (PMI), which is typically at the fifth intercostal space at the midclavicular line. This technique allows healthcare providers to accurately assess the heart rate and rhythm by listening to the heart sounds directly at this point.

Correct Answer: B

Rationale: During a Romberg test, the patient is asked to stand with feet together and arms at the sides. The test evaluates proprioception and vestibular function by assessing the patient's ability to maintain balance with eyes closed. Asking the patient to stand helps to detect any balance issues or disturbances in the absence of visual input.

Correct Answer: A

Rationale: Notifying the physician is necessary when the urine output is less than 30 ml/hour as it indicates impaired kidney function. Adequate urine output is essential for monitoring kidney function, and a urine output less than 30 ml/hour could suggest potential renal issues that require medical attention.

Correct Answer: A

Rationale: The correct answer is A. Administering a drug to a patient with a known allergy, leading to severe harm such as an allergic reaction causing cerebral damage due to anoxia, constitutes nursing malpractice. In this scenario, the nurse failed to adhere to the standard of care by administering a medication that the patient was allergic to, resulting in serious harm, which is a clear example of malpractice in nursing.