Correct Answer: C

Rationale: In cases of adenocarcinoma of the rectum with positive peritoneal lymph nodes, the most likely site of metastasis is the liver. Colon tumors commonly spread through the lymphatics and portal vein to the liver. While metastasis to the brain, bone, or mediastinum is possible, the liver is typically the first to be affected due to the anatomical pathways involved in colorectal cancer metastasis. Therefore, the correct answer is the liver. Metastasis to the brain, bone, or mediastinum would be less likely at this stage of colorectal cancer progression.

Correct Answer: D

Rationale: The correct answer is tendon rupture. Floxin is a quinolone antibiotic commonly used in respiratory infections and pelvic/reproductive infections. One of the rare adverse effects associated with quinolones is tendon sheath rupture, often affecting the Achilles tendon. Therefore, patients taking Floxin should be alerted to the possibility of tendon rupture. Choices A, B, and C are incorrect as they are not typically associated with Floxin use and are not common adverse effects of quinolone antibiotics. Stunting of height is not a recognized adverse effect of Floxin. Anovulatory uterine bleeding is not a known side effect of quinolones. Intractable diarrhea is not a common adverse effect of Floxin.

Correct Answer: D

Rationale: The recommended way to secure an infant in a car is to place them in the middle of the back seat in a rear-facing infant safety seat. Option A is incorrect because infants should never be held while in a moving vehicle due to safety concerns. Option B is incorrect because placing an infant in the front seat with a rear-facing safety seat can be risky if the car has passenger-side airbags. Option C is incorrect as booster seats are not suitable for infants. Therefore, the correct choice is to secure the infant in the middle of the back seat in a rear-facing infant safety seat.

Correct Answer: V

Rationale: Family availability to provide care and assistance is not an indicator for skilled home care services. In fact, the nurse might see an opportunity for family education to meet the client's needs so that less community support is needed. This should be discussed and negotiated with the family. Frequent hospital readmissions indicate that the client has not been able to manage either due to condition instability or lack of care needs being met, which is a red flag for home care services to monitor and meet those needs appropriately. A Foley catheter requires home health care due to infection potential and care requirements. IV antibiotics also necessitate home care for maintaining line patency and assessing the site.

Correct Answer: B

Rationale: When a drug is categorized as Category X, it signifies that there are significant risks of fetal abnormalities if taken during pregnancy. For this reason, women of child-bearing age/capacity should use reliable forms of birth control to prevent pregnancy while on the medication. This ensures that the client avoids the potential harm to the fetus. Option A is incorrect because pregnancy tests are not unreliable due to the drug, but rather the risk is related to potential harm to the fetus. Option C is incorrect as avoiding the drug only on days of intercourse does not provide sufficient protection against pregnancy. Option D is incorrect as the need for an endocrinologist is not directly related to the use of Category X drugs.