A nurse is preparing to administer a vaccine to a 4-year-old child. Which of the following vaccines should the nurse administer?

Choice A reason: A 24-gauge catheter is appropriate for a small and fragile vein of a 12-month-old infant. It minimizes the risk of damaging the vein and ensures the comfort of the infant during IV therapy.

Choice B reason: Starting an IV in the infant's foot is not the first choice due to the risk of movement dislodging the catheter. The hand or the antecubital fossa are preferred sites for IV insertion in infants.

Choice C reason: While it is important to cover the IV insertion site, an opaque dressing is not necessary. A transparent dressing is preferred as it allows for continuous visibility of the site for signs of infection or phlebitis.

Choice D reason: The IV site should not be routinely changed every 3 days. It should be changed based on clinical indications such as signs of infection, infiltration, or phlebitis, or if the IV becomes dislodged.

Choice A reason: This is a finding that the nurse should report to the provider. A pressure dressing is applied to the site of the catheter insertion to prevent bleeding and hematoma formation. If the dressing is saturated with bloody drainage, it indicates that the bleeding is not controlled and may lead to hemorrhage or infection.

Choice B reason: This is a finding that the nurse should report to the provider. Pulses of the extremity where the catheter was inserted should be equal to or stronger than the other extremity. If the pulses are diminished, it indicates that there is impaired blood flow to the extremity, which may be caused by arterial occlusion, thrombosis, or vasospasm.

Choice C reason: This is a finding that the nurse should report to the provider. The color and temperature of the extremity where the catheter was inserted should be similar to the other extremity. If the extremity is cool and pale, it indicates that there is inadequate perfusion to the extremity, which may be caused by the same factors as the diminished pulses.

Choice D reason: This is a finding that the nurse should report to the provider. Pain is an indicator of tissue damage or inflammation. The adolescent should have minimal or no pain after the procedure, as the site is numbed with local anesthesia. If the pain is present or increases, it indicates that there is a complication, such as bleeding, infection, or nerve injury.

Choice E reason: This is not a finding that the nurse should report to the provider. The apical pulse is the heart rate measured at the apex of the heart. It is a routine vital sign that the nurse should monitor after the procedure, but it is not a sign of a complication unless it is abnormal, such as too fast, too slow, or irregular. The nurse should compare the apical pulse with the baseline and the expected range for the adolescent's age and condition.