Correct Answer: B

Rationale: The correct action for the nurse when preparing an adolescent for a lumbar puncture is to apply a topical analgesic cream to the site one hour before the procedure. This helps reduce pain experienced during the lumbar puncture, making the procedure more comfortable for the adolescent.

Correct Answer: A

Rationale: The correct answer is A because leaving a filled mop bucket on the floor poses a drowning hazard for a 10-month-old child. Water in the bucket can be a potential drowning risk if the child falls into it. Pan handles turned to the back of the stove prevent accidental spills or burns. Filling the bathtub before bringing the baby into the bathroom helps in preventing burns from hot water. Placing the child in a car seat in the middle of the back seat provides safety by minimizing the risk of injury during a car ride.

Correct Answer: A

Rationale: Immediate initiation of oral feedings is contraindicated post-abdominal surgery due to the risk of bowel complications such as paralytic ileus or anastomotic leak. Starting oral feedings immediately can increase the risk of these complications and hinder the healing process. It is crucial to wait until bowel function returns and the patient shows signs of tolerance before introducing oral feedings. Assessment of the surgical site, administration of opioid narcotics for pain management, and visitation at the bedside are essential components of postoperative care and should not be excluded.

Correct Answer: C

Rationale: When administering an immunization to a four-year-old child, it is important to use a 24-gauge needle to minimize pain and discomfort for the child. Thicker needles can cause more pain and tissue trauma. Using a thinner needle like a 24-gauge is appropriate for pediatric immunizations. The other options are not recommended practices: placing the child in a prone position is not ideal for immunization administration, it is beneficial to have the caregiver present for support, and aspirating before administering the immunization is not required for intramuscular injections in current practice.

Correct Answer: C

Rationale: Rectal temperatures are contraindicated in a toddler with a colostomy due to the risk of injury.