Early pregnancyFree in the app
Pregnancy of unknown location
Positive test, no pregnancy seen on TVS.
Source: NICE NG126 Calculator
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hCG 48 h apart
| Rise >63% | Likely developing IUP (ectopic not excluded) — TVS in 7–14 days, earlier if hCG ≥1500. |
|---|---|
| Fall >50% | Likely failing — urine pregnancy test 14 days later; review within 24 h if positive. |
| In between | Clinical review in EPU within 24 hours. |
Pain, heavy bleeding, shoulder-tip pain or collapse = urgent review regardless of hCG.
A summary for trained clinicians. Always check the full guideline, the patient in front of you and your hospital's protocol. Spotted an error? Tell us.