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38 Possible Causes for Chocolate-Brown Colored Blood

  • Methemoglobinemia

    All patients manifested cyanosis, low oxygen saturation and chocolate-brown-colored blood despite supplemental oxygen therapy.[ncbi.nlm.nih.gov] The main symptoms are: cyanosis, which describes a bluish color of the skin, especially the lips and fingers chocolate-brown colored blood It’s because of cyanosis that some[healthline.com] At autopsy, the lividity of the face and back was greenish gray, and the blood was tinted a chocolate brown color.[omicsonline.org]

  • Nitrite Poisoning

    At autopsy, the lividity of the face and back was greenish gray, and the blood was tinted a chocolate brown color.[omicsonline.org] Nitrite poisoning is distinguished by the appearance of cyanosis that is not improving after supplementation with oxygen and by observing a brown to chocolate color of blood[symptoma.com] It turns the fish’s blood to a chocolate-brown color.[koihealth.info]

  • Aniline Poisoning

    A case of aniline poisoning with methemoglobinemia unresponsive to methylene blue is described. Exchange transfusion proved successful. A rationale for the failure of methylene blue under these circumstances is described.[ncbi.nlm.nih.gov]

  • Sodium Nitrite

    At autopsy, the lividity of the face and back was greenish gray, and the blood was tinted a chocolate brown color.[omicsonline.org] Autopsy findings showed no significant macroscopic or microscopic findings except blood tinted chocolate brown color and chronic atopic dermatitis over the whole surface of[ncbi.nlm.nih.gov] The blood of victims is described as "chocolate brown" or otherwise atypical in color and does not redden with exposure to air.[cdc.gov]

  • Nitrate Poisoning

    Chocolate brown blood and muddy brown mucus membranes indicate nitrate poisoning, whereas prussic acid poisoning is indicated by bright red blood and bright pink mucous membrane[noble.org] The blood will also turn a chocolate-brown color, which reflects the lack of oxygen.[extension.missouri.edu] Nitrate poisoning can be differentiated from prussic acid poisoning by distinct blood and mucous membrane colors.[noble.org]

  • Inhalation Burn

    Additional clinical findings may include chocolate brown-color blood and cyanosis (despite normal pulse oximetry) that is not responsive to oxygen therapy. 13 Carbon Monoxide[emsworld.com]

  • Inhalation of Noxious Gases

    Additional clinical findings may include chocolate brown-color blood and cyanosis (despite normal pulse oximetry) that is not responsive to oxygen therapy. 13 Carbon Monoxide[emsworld.com]

  • Ruptured Ectopic Pregnancy

    'Chocolate-brown' blood was observed and methemoglobinemia was considered.[ncbi.nlm.nih.gov] The mucocutaneous color was deeply cyanosed and the pulse oximeter oxygen saturation (SpO2) was only 86% after tracheal intubation (100% O2).[ncbi.nlm.nih.gov]

  • Congenital Methemoglobinemia

    We report a case of methaemoglobinaemia which was first diagnosed in the intraoperative period due to appearance of chocolate brown colored blood after surgical incision.[omicsonline.org] The main symptoms are: cyanosis, which describes a bluish color of the skin, especially the lips and fingers chocolate-brown colored blood It’s because of cyanosis that some[healthline.com] Case history 2: Chocolate-brown-colored blood suggests methemoglobinemia Blood containing a high concentration of methemoglobin is chocolate brown in color rather than the[acutecaretesting.org]

  • NADH Cytochrome B5 Reductase Deficiency

    Case history 2: Chocolate-brown-colored blood suggests methemoglobinemia Blood containing a high concentration of methemoglobin is chocolate brown in color rather than the[acutecaretesting.org] This can give the blood a bluish or chocolate-brown color.[flipper.diff.org] Gas (ABG) Appearance of Blood in ABG Syringe : chocolate or brown-blue color pO2 : normal Note that the pO2 reflects the plasma oxygen content and does not reflect the oxygen-carrying[mdnxs.com]

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