Correct Answer: A

Rationale: The correct answer is A: Medulla. The medulla is located in the brainstem and plays a crucial role in controlling involuntary functions like breathing. It contains the respiratory center, which regulates the rate and depth of breathing. The medulla sends signals to the diaphragm and intercostal muscles to control breathing. The cerebrum (B) is responsible for higher brain functions, not breathing control. The cerebellum (C) coordinates movement and balance, not breathing. The thalamus (D) relays sensory information to the cerebral cortex, not involved in breathing regulation.

Correct Answer: D

Rationale: The primary purpose of validation in assessment is to ensure that the data collected is accurate and reliable to plan appropriate nursing care. Validation helps confirm the accuracy of data, identify inconsistencies, and ensure that the information gathered is trustworthy. By verifying the data, nurses can make informed decisions and tailor individualized care plans to meet the patient's needs effectively. Choices A, B, and C are incorrect because they do not directly relate to the purpose of validation in assessment. Choice A focuses on the identification of data, not the purpose of validation. Choice B and C pertain to communication and relationships, which are important but not the primary purpose of validation in the assessment process.

Correct Answer: B

Rationale: The correct answer is B: Acute pain. The NANDA-I (North American Nursing Diagnosis Association International) approved diagnosis must meet specific criteria related to patient assessment data, defining characteristics, and related factors. Acute pain is a well-defined nursing diagnosis with specific defining characteristics and related factors, making it a suitable and approved option for inclusion in a patient's care plan. Sore throat, sleep apnea, and heart failure do not meet the criteria for a NANDA-I approved diagnosis as they lack the specificity and comprehensive assessment data required for a nursing diagnosis.

Correct Answer: C

Rationale: The correct answer is C, the 35-year-old with kidney failure. Patients with kidney failure are at high risk for fluid volume overload due to the kidneys' inability to properly regulate fluid balance. This can lead to accumulation of excess fluids in the body, causing edema, hypertension, and heart failure. In contrast, choices A, B, and D are not at as high risk for fluid volume overload as patients with kidney failure, as their conditions do not directly impact fluid regulation in the body.

Correct Answer: B

Rationale: The correct answer is B. Placing the patient on the right side with support to the back, pillows for body alignment, hips slightly flexed, and a washcloth placed so that fingers are slightly curled is most appropriate for a patient with right-sided paralysis following a stroke. This position helps prevent contractures by maintaining proper alignment and positioning of the limbs. Placing the washcloth to curl the fingers helps prevent hand contractures. Supporting the back and keeping the hips slightly flexed also helps prevent pressure ulcers and maintains proper body alignment. Choice A is incorrect because tightly holding a rolled washcloth may cause discomfort and restrict blood flow. Choice C is incorrect because placing the patient on the back with a pillow under the knees does not address the specific needs of a patient with right-sided paralysis. Choice D is incorrect because lying on the back with trochanter rolls and a footboard does not address the specific needs of a patient with right-sided paralysis and may not prevent contractures effectively.