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Low blood sugar (hypoglycaemia) — reference ranges
Glucose below the level the body needs to run properly. Most relevant to people on insulin or certain diabetes medicines, but it can happen to anyone who goes long enough without eating.
| Juosta | mmol/L | mg/dL | Ką tai reiškia |
|---|---|---|---|
| Level 1 hypo | 3.0-3.8 | 54-69 | The ADA's "alert" range: the body's counter-response is already active. Treat with fast sugar and re-check in 15 minutes. |
| Level 2 hypo | under 3.0 | under 54 | Clinically important: glucose low enough that thinking is measurably affected. Treat immediately. |
| Severe hypo | any low value + needing help | — | Level 3: the person cannot treat themselves — someone else must give sugar or glucagon, or call emergency services. |
Kaip tai skaityti kontekste
The symptoms come from two systems: the body's adrenaline response (shaking, sweating, fast heartbeat, sudden hunger) and the brain running low (confusion, blurring, irritability, slurring, sleepiness). The adrenaline signs are the warning; by the time the brain signs appear, treatment should already be underway.
The standard treatment is the "rule of 15": about 15 g of fast carbohydrate — roughly four glucose tablets, half a glass of juice or a tablespoon of honey — re-check after 15 minutes, repeat if still low, then eat something longer-lasting once recovered. The dose matters: this is the one situation where fast sugar is exactly right.
People without diabetes can get reactive hypos: a big sugar load, a strong insulin response, and a crash 2-4 hours later. Smaller meals, protein and fibre with the carbohydrate, and not drinking alcohol on an empty stomach usually end the pattern.
Kada kreiptis į gydytoją
- A hypo that does not respond to repeated treatment — emergency services.
- A severe hypo (needing help) — always worth a medical review afterwards, even if it resolved.
- Repeated hypos in someone without diabetes — the pattern itself is the thing to investigate.
Tik informacijai, nėra diagnozė. Šiame puslapyje pateiktos ribos yra populiacijos lygio WHO ir ADA vertės; jūsų gydytojas aiškina jūsų pačių skaičius pagal jūsų anamnezę, vartojamus vaistus ir kitus tyrimus. Jei prie vertės prisideda simptomai arba ji toliau krypsta netinkama linkme, būtent tai yra signalas veikti — ne šis puslapis.