Correct Answer: B

Rationale: The correct answer is B: Prothrombin time (PT). Amoxicillin can potentiate the effects of warfarin, increasing the risk of bleeding. Monitoring the prothrombin time (PT) is crucial in this situation to assess the client's clotting ability. Choices A, C, and D are incorrect because amoxicillin's interaction with warfarin does not directly impact serum potassium, serum sodium, or blood glucose levels.

Correct Answer: C

Rationale: The correct answer is C: 'Ensure your newborn has at least six wet diapers per day.' Six or more wet diapers per day is an indicator that the newborn is receiving adequate breast milk, making this an important part of breastfeeding education. Choice A is incorrect because washing nipples with soap after each feeding can lead to dryness and cracking. Choice B is incorrect as babies should nurse on demand rather than on a strict schedule of 5 minutes every 4 hours. Choice D is incorrect as giving water to a newborn between feedings is not recommended and can interfere with breastfeeding.

Correct Answer: B

Rationale: The correct answer is B: Asymmetric with variegated coloring. An asymmetric lesion with variegated coloring, meaning different shades of color within the same lesion, is characteristic of melanoma, a type of skin cancer. This type of lesion should raise suspicions and prompt further evaluation. Choices A, C, and D do not typically represent characteristics of suspicious skin lesions associated with skin cancer. Lesions that are scaly and red (Choice A) may indicate other skin conditions like eczema or psoriasis. Firm and rubbery lesions (Choice C) are more suggestive of benign skin growths like dermatofibromas. Lesions that are brown with a wart-like texture (Choice D) are often indicative of seborrheic keratosis, a benign growth, rather than a suspicious lesion related to skin cancer.

Correct Answer: D

Rationale: The correct action for the nurse to take first is to ask the family what the provider has discussed with them. This allows the nurse to clarify any misunderstandings and ensures that the family is fully informed before providing further information. Option A is not the best choice because it assumes the need for more information without first understanding what has already been communicated. Option B is premature as the family may not be ready for grief counseling at this stage. Option C, although a good general practice, is not the most appropriate immediate action in this situation where clarifying existing information is crucial.

Correct Answer: B

Rationale: The correct answer is B: Hyperkalemia. Enalapril, an ACE inhibitor, can lead to hyperkalemia by reducing aldosterone levels, which results in potassium retention. Bradycardia (Choice A) is not a common adverse effect of enalapril. Hyperglycemia (Choice C) and tinnitus (Choice D) are also not typically associated with enalapril use.