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"carbon monoxide poisoning" AND treatment

carbon monoxide poisoning CDC clinical guidance 2025

A single-page study mind map for medical forensic toxicology, centered on 'ASPHYXlANTS', with two clear major branches 'Carbon Monoxide (CO)' and 'Tear Gases'. Include a compact academic mind-map layout with legible medical study notes and connecting branches.

mkdir -p "/tmp/workspace/asphyxiants-mindmap/output" 66 python - <<'PY' from PIL import Image, ImageDraw, ImageFont from textwrap import wrap import math out='/tmp/workspace/asphyxiants-mindmap/output/Asphyxiants_Mind_Map.png' W,H=6000,4200 im=Image.new('RGB',(W,H),'#fffdf8'); d=ImageDraw.Draw(im) font='/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf'; bold='/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf' def F(s,b=False): return ImageFont.truetype(bold if b else font,s) def rr(box,fill,outline='#5b5148',width=5,r=35): d.rounded_rectangle(box,r,fill=fill,outline=outline,width=width) def textbox(box,title,body,fill,fs=39): x1,y1,x2,y2=box; rr(box,fill) d.text((x1+30,y1+20),title,font=F(54,True),fill='#251b17') yy=y1+93; maxchars=max(20,int((x2-x1-60)/(fs*.56))) for para in body.split('\n'): lines=wrap(para,width=maxchars,break_long_words=False) or [''] for line in lines: d.text((x1+30,yy),line,font=F(fs),fill='#2c2825'); yy+=int(fs*1.28) yy+=10 # title rr((2180,1750,3820,2200),'#742f35','#3b1518',8,90) d.text((2410,1820),'ASPHYXlANTS',font=F(115,True),fill='white') d.text((2590,1970),'Forensic Toxicology',font=F(56),fill='#ffe9cf') # connector function def line(a,b,color,w=18): d.line([a,b],fill=color,width=w); # no arrow # left CO connections for a,b in [((2180,1900),(1300,450)),((2180,1950),(1300,1150)),((2180,2000),(1300,1850)),((2180,2050),(1300,2550)),((2180,2100),(1300,3350))]: line(a,b,'#a24635') # right tear connections for a,b in [((3820,1900),(4700,500)),((3820,1960),(4700,1300)),((3820,2020),(4700,2100)),((3820,2080),(4700,2900)),((3820,2140),(4700,3550))]: line(a,b,'#216574') # boxes left textbox((80,80,2300,810),'1. INTRODUCTION','Asphyxiants: non-toxic/toxic gases that cause asphyxia.\n• Simple: displace O₂ from ambient air → hypoxia (e.g. CO₂, nitrogen, helium, methane).\n• Systemic: interfere with O₂ transport/use at tissue level (e.g. CO, cyanide, H₂S).','#f9e3d2',42) textbox((80,880,2300,1450),'2. CARBON MONOXIDE - PROPERTIES & SOURCES','Colourless, tasteless, non-irritant, odourless gas; slightly lighter than air.\nSources: incomplete combustion of carbonaceous material: automobile exhaust, charcoal/wood, coal, gas/oil heaters, furnaces, fire/smoke; CO₂ absorbers in diving/rebreathing equipment.','#ffe9c1',40) textbox((80,1520,2300,2180),'3. ACTION / PATHOGENESIS','CO binds Hb reversibly → carboxyhaemoglobin (COHb), reducing O₂-carrying capacity and shifting O₂ dissociation curve left. It inhibits cellular respiration by binding cytochrome oxidase. Heart and brain are most vulnerable.','#f7d9d9',42) textbox((80,2250,2300,3000),'4. CLINICAL FEATURES & SEVERITY','Early: dull frontal headache, dizziness, weakness, nausea/vomiting, dyspnoea.\nProgressive: confusion, irritability, ataxia, visual disturbance, tachycardia.\nSevere: syncope, seizures, coma, respiratory failure, death.\nCOHb: 10-20% headache; 20-30% throbbing headache; 30-40% severe headache/nausea; 40-50% confusion; 50-60% coma; >60% death.','#f5e6cc',39) textbox((80,3070,2300,4020),'5. DIAGNOSIS, DDx & TREATMENT','Diagnosis: exposure history (especially several persons in enclosed space), symptoms, COHb by co-oximetry (pulse oximetry can mislead); blood gas.\nDDx: alcohol intoxication, diabetic ketoacidosis, cerebral haemorrhage, head injury, uremia, tranquilizer/narcotic poisoning.\nTreatment: remove exposure; ABC support; immediate 100% O₂. Consider hyperbaric O₂ for serious poisoning: loss of consciousness, neurologic signs, cardiovascular instability, severe acidosis, COHb >25% (lower threshold in pregnancy).','#f6d7b9',37) # right textbox((3700,80,5920,850),'6. DELAYED / CHRONIC CO POISONING','Delayed neuropsychiatric sequelae: apparent recovery then recurrence after days/weeks: memory and concentration impairment, personality change, insomnia, anxiety/depression, apathy, psychosis, movement disorder, urinary incontinence.\nChronic low-level exposure: headache, fatigue, poor concentration, declining intellect, memory disturbance, chronic cough; anaemia/immune deficiency may occur.','#dceced',38) textbox((3700,920,5920,1600),'7. POSTMORTEM & MEDICO-LEGAL ASPECTS','PM: bright cherry-red blood, hypostasis and viscera; may fade on exposure. COHb estimation supports diagnosis. Lungs congested/oedematous; brain congestion/petechiae, basal-ganglia lesions may occur.\nManner: accidental (fires, faulty heaters, vehicle exhaust), suicidal (vehicle/exhaust), rarely homicidal. Preserve blood, lungs, brain, spleen and liver for analysis.','#d9e8f5',38) textbox((3700,1670,5920,2290),'8. TEAR GASES - INTRODUCTION & TYPES','Riot-control chemicals dispersed as aerosols; cause irritation of eyes, mouth, throat, lungs and skin.\nTypes of chemical warfare agents: asphyxiants; vesicants/blister gases; lacrimators/tear gases (riot-control); respiratory/nasal irritants; nerve gases; miscellaneous agents (e.g. methyl isocyanate).','#dff1e1',38) textbox((3700,2360,5920,3020),'9. COMMON AGENTS & FEATURES','CN (chloroacetophenone), CS (chlorobenzylidene malononitrile), OC (oleoresin capsicum/pepper spray).\nEyes: lacrimation, conjunctival/corneal burning, blepharospasm, photophobia.\nRespiratory: nasal/throat burning, cough, sneezing, chest tightness, dyspnoea.\nGIT: burning mouth, salivation, nausea/vomiting.\nSkin: burning/erythema. Very low dose may cause ocular irritation.','#ddf0dd',37) textbox((3700,3090,5920,4020),'10. TEAR GASES - TREATMENT & MEDICO-LEGAL','Remove contaminated clothing. Decontaminate rapidly with copious water or saline; wash with soap and water. Fresh air, oxygen, assisted ventilation if needed. For pepper spray, aluminium hydroxide suspension may be applied briefly; treat complications symptomatically.\nMedico-legal: agents used for riot-control and crowd suppression.','#cfe7df',39) # footer d.text((2100,4100),'One-page revision map | CO poisoning and Tear Gases',font=F(32),fill='#60564e') im.save(out,optimize=True) print(out) PY python - <<'PY' from PIL import Image p='/tmp/workspace/asphyxiants-mindmap/output/Asphyxiants_Mind_Map.png' im=Image.open(p); print(im.size, im.getbbox()) PY

mkdir -p "/tmp/workspace/asphyxiants-mindmap/output"; python - <<'PY' from PIL import Image, ImageDraw, ImageFont from textwrap import wrap out='/tmp/workspace/asphyxiants-mindmap/output/Asphyxiants_Mind_Map.png' W,H=6000,4200 im=Image.new('RGB',(W,H),'#fffdf8'); d=ImageDraw.Draw(im) font='/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf'; bold='/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf' def F(s,b=False): return ImageFont.truetype(bold if b else font,s) def rr(box,fill,outline='#5b5148',width=5,r=35): d.rounded_rectangle(box,r,fill=fill,outline=outline,width=width) def textbox(box,title,body,fill,fs=39): x1,y1,x2,y2=box; rr(box,fill); d.text((x1+30,y1+20),title,font=F(54,True),fill='#251b17'); yy=y1+93; n=max(20,int((x2-x1-60)/(fs*.56))) for para in body.split('\n'): for ln in (wrap(para,width=n,break_long_words=False) or ['']): d.text((x1+30,yy),ln,font=F(fs),fill='#2c2825'); yy+=int(fs*1.28) yy+=10 def line(a,b,c,w=18): d.line([a,b],fill=c,width=w) rr((2180,1750,3820,2200),'#742f35','#3b1518',8,90); d.text((2410,1820),'ASPHYXlANTS',font=F(115,True),fill='white'); d.text((2590,1970),'Forensic Toxicology',font=F(56),fill='#ffe9cf') for a,b in [((2180,1900),(1300,450)),((2180,1950),(1300,1150)),((2180,2000),(1300,1850)),((2180,2050),(1300,2550)),((2180,2100),(1300,3350))]: line(a,b,'#a24635') for a,b in [((3820,1900),(4700,500)),((3820,1960),(4700,1300)),((3820,2020),(4700,2100)),((3820,2080),(4700,2900)),((3820,2140),(4700,3550))]: line(a,b,'#216574') textbox((80,80,2300,810),'1. INTRODUCTION','Asphyxiants: non-toxic/toxic gases that cause asphyxia.\n• Simple: displace O₂ from ambient air → hypoxia (e.g. CO₂, nitrogen, helium, methane).\n• Systemic: interfere with O₂ transport/use at tissue level (e.g. CO, cyanide, H₂S).','#f9e3d2',42) textbox((80,880,2300,1450),'2. CARBON MONOXIDE - PROPERTIES & SOURCES','Colourless, tasteless, non-irritant, odourless gas; slightly lighter than air.\nSources: incomplete combustion of carbonaceous material: automobile exhaust, charcoal/wood, coal, gas/oil heaters, furnaces, fire/smoke; CO₂ absorbers in diving/rebreathing equipment.','#ffe9c1',40) textbox((80,1520,2300,2180),'3. ACTION / PATHOGENESIS','CO binds Hb reversibly → carboxyhaemoglobin (COHb), reducing O₂-carrying capacity and shifting O₂ dissociation curve left. It inhibits cellular respiration by binding cytochrome oxidase. Heart and brain are most vulnerable.','#f7d9d9',42) textbox((80,2250,2300,3000),'4. CLINICAL FEATURES & SEVERITY','Early: dull frontal headache, dizziness, weakness, nausea/vomiting, dyspnoea.\nProgressive: confusion, irritability, ataxia, visual disturbance, tachycardia.\nSevere: syncope, seizures, coma, respiratory failure, death.\nCOHb: 10-20% headache; 20-30% throbbing headache; 30-40% severe headache/nausea; 40-50% confusion; 50-60% coma; >60% death.','#f5e6cc',39) textbox((80,3070,2300,4020),'5. DIAGNOSIS, DDx & TREATMENT','Diagnosis: exposure history (especially several persons in enclosed space), symptoms, COHb by co-oximetry (pulse oximetry can mislead); blood gas.\nDDx: alcohol intoxication, diabetic ketoacidosis, cerebral haemorrhage, head injury, uremia, tranquilizer/narcotic poisoning.\nTreatment: remove exposure; ABC support; immediate 100% O₂. Consider hyperbaric O₂ for serious poisoning: loss of consciousness, neurologic signs, cardiovascular instability, severe acidosis, COHb >25% (lower threshold in pregnancy).','#f6d7b9',37) textbox((3700,80,5920,850),'6. DELAYED / CHRONIC CO POISONING','Delayed neuropsychiatric sequelae: apparent recovery then recurrence after days/weeks: memory and concentration impairment, personality change, insomnia, anxiety/depression, apathy, psychosis, movement disorder, urinary incontinence.\nChronic low-level exposure: headache, fatigue, poor concentration, declining intellect, memory disturbance, chronic cough; anaemia/immune deficiency may occur.','#dceced',38) textbox((3700,920,5920,1600),'7. POSTMORTEM & MEDICO-LEGAL ASPECTS','PM: bright cherry-red blood, hypostasis and viscera; may fade on exposure. COHb estimation supports diagnosis. Lungs congested/oedematous; brain congestion/petechiae, basal-ganglia lesions may occur.\nManner: accidental (fires, faulty heaters, vehicle exhaust), suicidal (vehicle/exhaust), rarely homicidal. Preserve blood, lungs, brain, spleen and liver for analysis.','#d9e8f5',38) textbox((3700,1670,5920,2290),'8. TEAR GASES - INTRODUCTION & TYPES','Riot-control chemicals dispersed as aerosols; cause irritation of eyes, mouth, throat, lungs and skin.\nTypes of chemical warfare agents: asphyxiants; vesicants/blister gases; lacrimators/tear gases (riot-control); respiratory/nasal irritants; nerve gases; miscellaneous agents (e.g. methyl isocyanate).','#dff1e1',38) textbox((3700,2360,5920,3020),'9. COMMON AGENTS & FEATURES','CN (chloroacetophenone), CS (chlorobenzylidene malononitrile), OC (oleoresin capsicum/pepper spray).\nEyes: lacrimation, conjunctival/corneal burning, blepharospasm, photophobia.\nRespiratory: nasal/throat burning, cough, sneezing, chest tightness, dyspnoea.\nGIT: burning mouth, salivation, nausea/vomiting.\nSkin: burning/erythema. Very low dose may cause ocular irritation.','#ddf0dd',37) textbox((3700,3090,5920,4020),'10. TEAR GASES - TREATMENT & MEDICO-LEGAL','Remove contaminated clothing. Decontaminate rapidly with copious water or saline; wash with soap and water. Fresh air, oxygen, assisted ventilation if needed. For pepper spray, aluminium hydroxide suspension may be applied briefly; treat complications symptomatically.\nMedico-legal: agents used for riot-control and crowd suppression.','#cfe7df',39) d.text((2100,4100),'One-page revision map | CO poisoning and Tear Gases',font=F(32),fill='#60564e'); im.save(out,optimize=True); print(out) PY python -c "from PIL import Image; im=Image.open('/tmp/workspace/asphyxiants-mindmap/output/Asphyxiants_Mind_Map.png'); print(im.size)"

/usr/share/fonts

/usr/share/fonts/google-droid-sans-fonts

python - <<'PY' p='/tmp/workspace/asphyxiants-mindmap/output/Asphyxiants_Mind_Map.py' s='''from PIL import Image, ImageDraw, ImageFont from textwrap import wrap out="/tmp/workspace/asphyxiants-mindmap/output/Asphyxiants_Mind_Map.png" W,H=6000,4200 im=Image.new("RGB",(W,H),"#fffdf8"); d=ImageDraw.Draw(im) font="/usr/share/fonts/google-droid-sans-fonts/DroidSans.ttf"; bold="/usr/share/fonts/google-droid-sans-fonts/DroidSans-Bold.ttf" def F(s,b=False): return ImageFont.truetype(bold if b else font,s) def rr(box,fill,outline="#5b5148",width=5,r=35): d.rounded_rectangle(box,r,fill=fill,outline=outline,width=width) def textbox(box,title,body,fill,fs=39): x1,y1,x2,y2=box; rr(box,fill); d.text((x1+30,y1+20),title,font=F(54,True),fill="#251b17"); yy=y1+93; n=max(20,int((x2-x1-60)/(fs*.56))) for para in body.split("\\n"): for ln in (wrap(para,width=n,break_long_words=False) or [""]): d.text((x1+30,yy),ln,font=F(fs),fill="#2c2825"); yy+=int(fs*1.28) yy+=10 def line(a,b,c,w=18): d.line([a,b],fill=c,width=w) rr((2180,1750,3820,2200),"#742f35","#3b1518",8,90); d.text((2410,1820),"ASPHYXlANTS",font=F(115,True),fill="white"); d.text((2590,1970),"Forensic Toxicology",font=F(56),fill="#ffe9cf") for a,b in [((2180,1900),(1300,450)),((2180,1950),(1300,1150)),((2180,2000),(1300,1850)),((2180,2050),(1300,2550)),((2180,2100),(1300,3350))]: line(a,b,"#a24635") for a,b in [((3820,1900),(4700,500)),((3820,1960),(4700,1300)),((3820,2020),(4700,2100)),((3820,2080),(4700,2900)),((3820,2140),(4700,3550))]: line(a,b,"#216574") textbox((80,80,2300,810),"1. INTRODUCTION","Asphyxiants: non-toxic/toxic gases that cause asphyxia.\\n• Simple: displace O₂ from ambient air → hypoxia (e.g. CO₂, nitrogen, helium, methane).\\n• Systemic: interfere with O₂ transport/use at tissue level (e.g. CO, cyanide, H₂S).","#f9e3d2",42) textbox((80,880,2300,1450),"2. CARBON MONOXIDE - PROPERTIES & SOURCES","Colourless, tasteless, non-irritant, odourless gas; slightly lighter than air.\\nSources: incomplete combustion of carbonaceous material: automobile exhaust, charcoal/wood, coal, gas/oil heaters, furnaces, fire/smoke; CO₂ absorbers in diving/rebreathing equipment.","#ffe9c1",40) textbox((80,1520,2300,2180),"3. ACTION / PATHOGENESIS","CO binds Hb reversibly → carboxyhaemoglobin (COHb), reducing O₂-carrying capacity and shifting O₂ dissociation curve left. It inhibits cellular respiration by binding cytochrome oxidase. Heart and brain are most vulnerable.","#f7d9d9",42) textbox((80,2250,2300,3000),"4. CLINICAL FEATURES & SEVERITY","Early: dull frontal headache, dizziness, weakness, nausea/vomiting, dyspnoea.\\nProgressive: confusion, irritability, ataxia, visual disturbance, tachycardia.\\nSevere: syncope, seizures, coma, respiratory failure, death.\\nCOHb: 10-20% headache; 20-30% throbbing headache; 30-40% severe headache/nausea; 40-50% confusion; 50-60% coma; >60% death.","#f5e6cc",39) textbox((80,3070,2300,4020),"5. DIAGNOSIS, DDx & TREATMENT","Diagnosis: exposure history (especially several persons in enclosed space), symptoms, COHb by co-oximetry (pulse oximetry can mislead); blood gas.\\nDDx: alcohol intoxication, diabetic ketoacidosis, cerebral haemorrhage, head injury, uremia, tranquilizer/narcotic poisoning.\\nTreatment: remove exposure; ABC support; immediate 100% O₂. Consider hyperbaric O₂ for serious poisoning: loss of consciousness, neurologic signs, cardiovascular instability, severe acidosis, COHb >25% (lower threshold in pregnancy).","#f6d7b9",37) textbox((3700,80,5920,850),"6. DELAYED / CHRONIC CO POISONING","Delayed neuropsychiatric sequelae: apparent recovery then recurrence after days/weeks: memory and concentration impairment, personality change, insomnia, anxiety/depression, apathy, psychosis, movement disorder, urinary incontinence.\\nChronic low-level exposure: headache, fatigue, poor concentration, declining intellect, memory disturbance, chronic cough; anaemia/immune deficiency may occur.","#dceced",38) textbox((3700,920,5920,1600),"7. POSTMORTEM & MEDICO-LEGAL ASPECTS","PM: bright cherry-red blood, hypostasis and viscera; may fade on exposure. COHb estimation supports diagnosis. Lungs congested/oedematous; brain congestion/petechiae, basal-ganglia lesions may occur.\\nManner: accidental (fires, faulty heaters, vehicle exhaust), suicidal (vehicle/exhaust), rarely homicidal. Preserve blood, lungs, brain, spleen and liver for analysis.","#d9e8f5",38) textbox((3700,1670,5920,2290),"8. TEAR GASES - INTRODUCTION & TYPES","Riot-control chemicals dispersed as aerosols; cause irritation of eyes, mouth, throat, lungs and skin.\\nTypes of chemical warfare agents: asphyxiants; vesicants/blister gases; lacrimators/tear gases (riot-control); respiratory/nasal irritants; nerve gases; miscellaneous agents (e.g. methyl isocyanate).","#dff1e1",38) textbox((3700,2360,5920,3020),"9. COMMON AGENTS & FEATURES","CN (chloroacetophenone), CS (chlorobenzylidene malononitrile), OC (oleoresin capsicum/pepper spray).\\nEyes: lacrimation, conjunctival/corneal burning, blepharospasm, photophobia.\\nRespiratory: nasal/throat burning, cough, sneezing, chest tightness, dyspnoea.\\nGIT: burning mouth, salivation, nausea/vomiting.\\nSkin: burning/erythema. Very low dose may cause ocular irritation.","#ddf0dd",37) textbox((3700,3090,5920,4020),"10. TEAR GASES - TREATMENT & MEDICO-LEGAL","Remove contaminated clothing. Decontaminate rapidly with copious water or saline; wash with soap and water. Fresh air, oxygen, assisted ventilation if needed. For pepper spray, aluminium hydroxide suspension may be applied briefly; treat complications symptomatically.\\nMedico-legal: agents used for riot-control and crowd suppression.","#cfe7df",39) d.text((2100,4100),"One-page revision map | CO poisoning and Tear Gases",font=F(32),fill="#60564e"); im.save(out,optimize=True) ''' open(p,'w').write(s) PY python "/tmp/workspace/asphyxiants-mindmap/output/Asphyxiants_Mind_Map.py"; python -c "from PIL import Image; im=Image.open('/tmp/workspace/asphyxiants-mindmap/output/Asphyxiants_Mind_Map.png'); print(im.size)"

~/asphyxiants-mindmap/output