Final answer:
The nurse should advise the child to carry hard candies to manage a hypoglycemic reaction. Insulin injections are not for increasing blood sugar, but for decreasing it after high-glucose meals. Regular monitoring of blood sugar levels is vital for individuals with diabetes.
Step-by-step explanation:
If a child newly diagnosed with diabetes mellitus experiences a hypoglycemic reaction, the nurse should instruct the child to carry hard candies whenever leaving home. This quick source of sugar can help to promptly raise blood glucose levels and counteract the effects of hypoglycemia. Skipping the next insulin dose is not advisable, as it could lead to unpredictable blood glucose levels, and could result in hyperglycemia. Drinking large amounts of water will not raise blood glucose levels and is not effective in managing hypoglycemia. Performing strenuous exercise is also not a suitable course of action as it may further lower blood glucose levels and exacerbate the hypoglycemic reaction.
It's crucial to mention that insulin injections play a significant role in managing blood glucose levels. According to medical guidelines, insulin aids in the transport and storage of glucose and thus, helps to decrease blood glucose levels after consuming a high-glucose meal. If hypoglycemia occurs, it may indicate that the insulin dose is higher than necessary and should be adjusted by a healthcare professional. It's also essential for people with diabetes, particularly type 1 diabetes, to monitor their blood sugar levels frequently with a meter and take insulin injections as required for life.