A simple blood test trend may flag ICU patients at risk

NCT ID NCT07761832

Completed Knowledge-focused Sponsor: Hospital H+ Queretaro Source: ClinicalTrials.gov ↗

First seen Aug 12, 2026 · Last updated Aug 13, 2026 · Updated 1 time

Summary

This observational study looks at whether a fast drop in hemoglobin during the first 24 hours in the ICU can predict a longer stay (8 days or more) or death in the hospital. Researchers will review medical records of about 128 critically ill adults, comparing their hemoglobin levels at admission and roughly a day later. No extra tests or treatments are given—only routine data is analyzed. If the link holds, this simple trend could help identify high-risk patients earlier.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If early hemoglobin decline reliably predicts worse outcomes, doctors could flag high-risk ICU patients sooner and tailor monitoring or transfusions to improve care.
What could go wrong: This is an observational study, so it can show links but not prove cause. Results may not apply to all ICU patients, and the 128-person sample is relatively small.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

anemia Critical Illness

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ANEMIA CRITICAL ILLNESS

Contacts and locations

Locations

Hospital H+ Querétaro, Santiago de Querétaro, Querétaro

Querétaro City, Querétaro, 76000, Mexico

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