Correct Answer: A

Rationale: The correct answer is A: Not until the drain is removed. After a mastectomy with immediate reconstruction, there is typically a drain in place to collect fluid. Showering before the drain is removed can increase the risk of infection and disrupt the healing process. It is important to wait until the healthcare provider removes the drain to ensure proper healing and reduce the risk of complications. Summary: B: On the second postoperative day - Too early, the drain needs to be removed first. C: Now, if you wash gently with soap and water - Incorrect, the drain should be removed before showering. D: Seven days after your surgery - Incorrect, waiting for a specific number of days is not necessary, it depends on when the drain is removed.

Correct Answer: D

Rationale: The correct answer is D: Different molecular structure in the cells. Malignant cells have alterations in their molecular structure, leading to uncontrolled growth and invasion of surrounding tissues, while benign cells retain their normal molecular structure and do not invade nearby tissues. This distinction is crucial in understanding why malignant cells are cancerous and pose a greater risk compared to benign cells. Other choices are incorrect because: A: Slow rate of mitosis of cancer cells - Malignant cells actually have a rapid rate of mitosis, contributing to their uncontrolled growth. B: Different proteins in the cell membrane - While there may be differences in proteins, the molecular structure is a more fundamental difference between malignant and benign cells. C: Differing size of the cells - Cell size alone is not a definitive characteristic that distinguishes between malignant and benign cells; molecular structure plays a more significant role.

Correct Answer: C

Rationale: The correct answer is C: indirect Coombs test of the mother. This test is crucial to determine if the mother has developed antibodies against the Rh-positive blood of twin A, which could lead to hemolytic disease of the newborn in future pregnancies. A direct Coombs test of twin A or twin B is not relevant in this scenario as it does not provide information about the mother's antibody status. Transcutaneous bilirubin levels are used to monitor jaundice in newborns and not related to Rh incompatibility. In summary, the indirect Coombs test of the mother is the most relevant test to assess the risk of hemolytic disease in future pregnancies.

Correct Answer: A

Rationale: The correct answer is A because therapeutic communication focuses on building a trusting relationship and understanding the patient's feelings and needs. By changing negative self-talk to positive self-talk, the nurse can help the patient develop a more positive outlook and improve self-esteem. This technique promotes effective communication by creating a supportive and non-judgmental environment. Option B is incorrect because small group communication is not the primary focus of therapeutic communication. Option C is incorrect as electronic communication lacks the personal interaction needed for therapeutic communication. Option D is incorrect because intrapersonal communication involves self-reflection and is not directly related to building strong teams in the context of patient care.

Correct Answer: C

Rationale: The correct choice is C because if no urine is obtained, it indicates that the catheter is not in the urethra. The nurse should remove the catheter, wipe with alcohol to maintain cleanliness, and reinsert after lubrication to ensure proper placement in the urethra. This step-by-step approach allows for a more accurate catheter insertion and prevents potential complications. Choice A is incorrect as discarding the catheter and starting over without addressing the issue does not solve the problem. Choice B is incorrect as filling the balloon with sterile water is not relevant to the situation of catheter misplacement. Choice D is incorrect as leaving the catheter in the vagina can lead to infection and is not a recommended practice.