Correct Answer: D

Rationale: The correct answer is D: Urine output of 20mL/hour. This is a critical finding after kidney transplant surgery as it indicates potential kidney dysfunction or acute kidney injury. Decreased urine output can lead to fluid and electrolyte imbalances, which can be life-threatening. Immediate physician notification is crucial for prompt intervention. Choices A, B, and C are within normal ranges and do not indicate immediate danger. Serum potassium level of 4.9mEq/L is slightly elevated but not critical. Temperature of 99.2F (37.3C) is within normal limits for postoperative care. Serum sodium level of 135mEq/L is also normal and does not warrant immediate physician notification.

Correct Answer: C

Rationale: Rationale: Choice C is correct because antibodies are indeed produced by B-cells as part of the adaptive immune response. B-cells differentiate into plasma cells that produce antibodies to target specific antigens. This process is essential for generating immunity against pathogens. Incorrect Choices: A: Antibody-mediated defense occurs through the B-cell system, not the T-cell system. T-cells are involved in cell-mediated immunity. B: Cellular immunity is mediated by T-cells, not antibodies produced by B-cells. T-cells directly attack infected cells. D: Lymphocytes can increase during an allergic response, but this does not specifically relate to immunity through antibody production by B-cells.

Correct Answer: B

Rationale: The correct answer is B: Focus on the patient's presenting situation. In the problem-oriented approach, the nurse starts by identifying the patient's main issue or reason for seeking care. This step helps prioritize data collection and guides further assessment and intervention. By focusing on the presenting situation, the nurse can gather relevant information efficiently and address the immediate concern. Incorrect choices: A: Completing questions in chronological order may not be the most effective approach as it does not prioritize the patient's current problem. C: Making accurate interpretations of data comes after data collection and analysis, not as the first step. D: Conducting an observational overview is important, but it should come after focusing on the patient's presenting situation to gather targeted data.

Correct Answer: A

Rationale: The correct answer is A: The nurse should practice interviewing strategies. This is the best remedy because improving the nurse's ability to gather comprehensive information during client history will ensure sufficient data for planning interventions. By practicing interviewing strategies, the nurse can learn to ask relevant questions, actively listen, and probe for additional details. Summary: B: Modifying the data collection tool may not address the issue of insufficient information if the problem lies with how the nurse conducts the interview. C: Determining the specific purpose of data collection is important but may not solve the immediate issue of lacking information for intervention planning. D: Updating the database is irrelevant to the problem of inadequate data collection during client history.

Correct Answer: D

Rationale: The correct answer is D: Maturates T cells. The thymus gland is crucial for the maturation of T cells, a type of white blood cell that plays a central role in the adaptive immune response. T cells mature in the thymus through a process of selection and education, where they learn to distinguish self from non-self antigens. This process is essential for the development of a functional immune system. Choices A, B, and C are incorrect because the thymus gland does not play a role in the maturation of B cells, platelets, or red blood cells, respectively.