ArticleJournal of family medicine and primary care2026
Acute methemoglobinemia- Diagnosing and managing in family practice.
Article in Journal of family medicine and primary care, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Methemoglobinemia is a rare but serious disorder in which hemoglobin is oxidized to methemoglobin, impairing oxygen transport. This condition can present in primary care with cyanosis and oxygen desaturation and is potentially misdiagnosed as respiratory or cardiac failure. We present the case of a 38-year-old male driver who was brought to the emergency department unconscious, with cyanosis, and unresponsive to oxygen therapy. His oxygen saturation was 86% on pulse oximetry, although arterial blood gas analysis showed a normal partial pressure of oxygen. The source of poisoning was unknown at the time of admission. Subsequent co-oximetry testing revealed elevated methemoglobin (MtHb) levels (64.8%), confirming a diagnosis of methemoglobinemia. Immediate treatment with intravenous methylene blue resulted in a prompt clinical recovery, with a return to consciousness and normalization of methemoglobin levels within hours. This case highlights the importance of considering methemoglobinemia in patients presenting with unexplained unconsciousness and cyanosis. Early diagnosis and treatment, even when the source of poisoning is unclear, are key to preventing complications and improving patient outcomes.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.