Insulin pump for type 1 diabetes: what to know

A pump sends rapid-acting insulin through a cannula or patch device under the skin. A small background dose replaces long-acting insulin, while meal or correction doses are programmed according to your plan. Some systems work with a glucose sensor, but displayed readings still need sensible interpretation. Pump therapy does not cure Type 1 Diabetes and does not remove the need for carbohydrate awareness, sick-day rules or follow-up.

Because a pump uses only rapid-acting insulin, a blocked, loose or empty infusion set can lead to high glucose more quickly than a missed long-acting injection. Excessive Thirst and Frequent Urination can be signs of high glucose; Bedwetting may also occur in a child whose glucose is poorly controlled.

Learn the device with a diabetes educator and keep supplies, batteries or charging equipment, testing materials and backup insulin available. Change the infusion set and site on the schedule given to you, inspect the site for redness or swelling, and confirm doses before delivery. Know how to switch to your backup plan if the pump fails. Record glucose, insulin, meals, exercise and technical problems so your team can adjust settings safely.

Check glucose and ketones according to your sick-day plan when glucose is high or you feel unwell. Contact your diabetes team urgently if readings remain high despite correction, ketones are present, or the infusion set may have failed. Emergency help is needed for vomiting, deep or rapid breathing, severe drowsiness, confusion or collapse. Shaking, sweating, dizziness or confusion may indicate Hypoglycaemia; treat it using your agreed plan.

Ask which pump and sensor options fit your routine, how doses are calculated, how to manage sport and illness, and exactly when to check ketones. Ask for a written pump-failure plan, training for family members, and advice on site reactions or repeated low readings.