Correct Answer: A

Rationale: The correct answer is teaching parenting skills to expectant mothers and their partners. This intervention is a primary prevention strategy aimed at educating individuals before a problem or condition develops. By teaching parenting skills, the nurse is promoting healthy behaviors and relationships, which can prevent future issues. The other options involve secondary or tertiary prevention strategies by identifying and treating existing conditions or providing interventions after a problem has occurred.

Correct Answer: A

Rationale: Prior to administering a blood transfusion, it is essential to prime the IV tubing with 0.9% sodium chloride to prevent hemolysis of the blood cells. Using a smaller gauge IV catheter (e.g., 20 or 22 gauge) is recommended for blood transfusions to prevent hemolysis. Filterless IV tubing is contraindicated for blood transfusions as it does not have a filter to trap potential blood clots or debris. Warming blood is unnecessary and could lead to the development of bacteria in the blood product. Therefore, the correct action for the nurse to take is to prime the IV tubing with 0.9% sodium chloride.

Correct Answer: A

Rationale: When measuring an infant's temperature, the most appropriate and non-invasive method is to place the tip of the thermometer under the center of the infant's axilla (armpit). This method is safe, quick, and comfortable for the infant. Inserting the probe into the rectum is invasive and not recommended for routine temperature measurement in infants. Inserting the thermometer in front of the infant's tongue is not a reliable method for measuring temperature. Pulling the pinna of the ear forward is a technique used for adults, not infants.

Correct Answer: D

Rationale: The correct answer demonstrates proper documentation by specifying the action taken ('Administered'), the dose ('8 units'), the medication ('regular insulin'), and the route of administration ('subcutaneously'). This notation ensures clarity and accuracy in recording the nursing intervention, aligning with best practices in documentation.

Correct Answer: B

Rationale: Toddlers with acute lymphocytic leukemia may have compromised immune systems and need to avoid activities that increase infection risk. Playing with a large plastic truck is a safe and engaging activity that does not pose a high risk of infection. This choice also promotes physical activity and creativity, which are beneficial for a toddler's development during illness.