CO2 narcosis - Revision history

Rossdonaldson1: /* Background */

2024-05-01T22:22:22Z

Background

← Older revision		Revision as of 22:22, 1 May 2024
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	==Background==		==Background==
			[[File:Respiratory system complete en.svg\|thumb\|]]
	[[File:Gas exchange.jpg\|thumb\|Normal gas exchange showing compositions of the ambient air, the alveolar air (light blue) with which the alveolar capillary blood equilibrates, and the blood gas tensions in the pulmonary arterial (blue blood entering the lung on the left) and venous blood (red blood leaving the lung on the right). All the gas tensions are in kPa (to convert to mm Hg, multiply by 7.5).]]		[[File:Gas exchange.jpg\|thumb\|Normal gas exchange showing compositions of the ambient air, the alveolar air (light blue) with which the alveolar capillary blood equilibrates, and the blood gas tensions in the pulmonary arterial (blue blood entering the lung on the left) and venous blood (red blood leaving the lung on the right). All the gas tensions are in kPa (to convert to mm Hg, multiply by 7.5).]]
	*[[hypercapnia\|Increased CO2]] in the blood leading to depressed mental status		*[[hypercapnia\|Increased CO2]] in the blood leading to depressed mental status

Rossdonaldson1: /* Background */

2024-05-01T22:07:44Z

Background

← Older revision		Revision as of 22:07, 1 May 2024
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	==Background==		==Background==
			[[File:Gas exchange.jpg\|thumb\|Normal gas exchange showing compositions of the ambient air, the alveolar air (light blue) with which the alveolar capillary blood equilibrates, and the blood gas tensions in the pulmonary arterial (blue blood entering the lung on the left) and venous blood (red blood leaving the lung on the right). All the gas tensions are in kPa (to convert to mm Hg, multiply by 7.5).]]
	*[[hypercapnia\|Increased CO2]] in the blood leading to depressed mental status		*[[hypercapnia\|Increased CO2]] in the blood leading to depressed mental status
	*Most commonly seen in acute exacerbations of obstructive pulmonary diseases (e.g. [[COPD]], [[asthma]])		*Most commonly seen in acute exacerbations of obstructive pulmonary diseases (e.g. [[COPD]], [[asthma]])

ClaireLewis at 15:11, 12 October 2019

2019-10-12T15:11:15Z

← Older revision		Revision as of 15:11, 12 October 2019
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	==Background==		==Background==
	*Increased CO2 in the blood leading to depressed mental status		*[[hypercapnia\|Increased CO2]] in the blood leading to depressed mental status
	*Most commonly seen in acute exacerbations of obstructive pulmonary diseases		*Most commonly seen in acute exacerbations of obstructive pulmonary diseases (e.g. [[COPD]], [[asthma]])
	*Can also be seen in [[Scuba diving emergencies\|SCUBA divers]]		*Can also be seen in [[Scuba diving emergencies\|SCUBA divers]]

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	*[[Headache]]		*[[Headache]]
	*[[Confusion]]		*[[Confusion]]
	*Lethargy		*[[Lethargy]]
	*Propensity for [[arrhythmias]]		*Propensity for [[arrhythmias]]
	*[[Seizure]]		*[[Seizure]]
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	==Evaluation==		==Evaluation==
	*VBG (ABG not required to make this diagnosis<ref>McCanny P, Bennett K, Staunton P, McMahon G. Venous vs arterial blood gases in the assessment of patients presenting with an exacerbation of chronic obstructive pulmonary disease. Am J Emerg Med. 2012; 30(6):896-900.</ref>)		*[[VBG]] (ABG not required to make this diagnosis<ref>McCanny P, Bennett K, Staunton P, McMahon G. Venous vs arterial blood gases in the assessment of patients presenting with an exacerbation of chronic obstructive pulmonary disease. Am J Emerg Med. 2012; 30(6):896-900.</ref>)

	==Management==		==Management==
	*Hyperventilation with either NIPPV or intubation/mechanical ventilation depending on severity and patient's mental status		*Hyperventilation with either [[biPAP\|NIPPV]] or [[intubation]]/mechanical ventilation depending on severity and patient's mental status

	==Disposition==		==Disposition==

Neil.m.young: Text replacement - "==Diagnosis==" to "==Evaluation=="

2016-07-22T11:11:19Z

Text replacement - "==Diagnosis==" to "==Evaluation=="

← Older revision		Revision as of 11:11, 22 July 2016
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	{{AMS DDX}}		{{AMS DDX}}

	==~~Diagnosis~~==		==Evaluation==
	*VBG (ABG not required to make this diagnosis<ref>McCanny P, Bennett K, Staunton P, McMahon G. Venous vs arterial blood gases in the assessment of patients presenting with an exacerbation of chronic obstructive pulmonary disease. Am J Emerg Med. 2012; 30(6):896-900.</ref>)		*VBG (ABG not required to make this diagnosis<ref>McCanny P, Bennett K, Staunton P, McMahon G. Venous vs arterial blood gases in the assessment of patients presenting with an exacerbation of chronic obstructive pulmonary disease. Am J Emerg Med. 2012; 30(6):896-900.</ref>)

Ostermayer: Text replacement - "Category:Pulm" to "Category:Pulmonary"

2016-03-22T16:12:05Z

Text replacement - "Category:Pulm" to "Category:Pulmonary"

← Older revision		Revision as of 16:12, 22 March 2016
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	<references/>		<references/>

	[[Category:~~Pulm~~]]		[[Category:Pulmonary]]

Rossdonaldson1: /* Background */

2016-01-21T11:52:35Z

Background

← Older revision		Revision as of 11:52, 21 January 2016
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	*Increased CO2 in the blood leading to depressed mental status		*Increased CO2 in the blood leading to depressed mental status
	*Most commonly seen in acute exacerbations of obstructive pulmonary diseases		*Most commonly seen in acute exacerbations of obstructive pulmonary diseases
	*Can also be seen in SCUBA divers		*Can also be seen in [[Scuba diving emergencies\|SCUBA divers]]

	==Clinical Features==		==Clinical Features==

Rossdonaldson1: /* Clinical Features */

2016-01-21T10:38:41Z

Clinical Features

← Older revision		Revision as of 10:38, 21 January 2016
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	==Clinical Features==		==Clinical Features==
	*Headache~~, confusion, lethargy, propensity~~ for arrhythmias~~, seizure/coma~~/death		*[[Headache]]
			*[[Confusion]]
			*Lethargy
			*Propensity for [[arrhythmias]]
			*[[Seizure]]
			*[[Coma]]/death

	==Differential Diagnosis==		==Differential Diagnosis==

Neil.m.young at 13:04, 12 January 2016

2016-01-12T13:04:09Z

← Older revision		Revision as of 13:04, 12 January 2016
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	==See Also==		==See Also==
			*[[Altered mental status]]

	==External Links==		==External Links==

Neil.m.young at 13:03, 12 January 2016

2016-01-12T13:03:31Z

← Older revision		Revision as of 13:03, 12 January 2016
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	<references/>		<references/>

	[Category:Pulm]		[[Category:Pulm]]

Neil.m.young: Format slightly changed to look similar to other pages; template added for AMS; vbg only for dx; ref removed as they are not connected to any specific fact and placed in discussion section

2016-01-12T13:02:09Z

Format slightly changed to look similar to other pages; template added for AMS; vbg only for dx; ref removed as they are not connected to any specific fact and placed in discussion section

← Older revision		Revision as of 13:02, 12 January 2016
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	==Background==		==Background==
	* ~~increased~~ CO2 in the blood leading to depressed mental status		*Increased CO2 in the blood leading to depressed mental status
	* ~~most~~ commonly seen in acute exacerbations of obstructive pulmonary diseases		*Most commonly seen in acute exacerbations of obstructive pulmonary diseases
	* ~~can~~ also be seen in SCUBA divers		*Can also be seen in SCUBA divers

	==Clinical Features==		==Clinical Features==
	* ~~headache~~, confusion, lethargy, propensity for arrhythmias, seizure/coma/death		*Headache, confusion, lethargy, propensity for arrhythmias, seizure/coma/death

	==Differential Diagnosis==		==Differential Diagnosis==
	*drug intoxication		{{AMS DDX}}
	*encephalopathy (renal, hepatic, hypertensive)
	*ICH
	*seizure
	==Diagnosis==		==Diagnosis==
	* ABG		*VBG (ABG not required to make this diagnosis<ref>McCanny P, Bennett K, Staunton P, McMahon G. Venous vs arterial blood gases in the assessment of patients presenting with an exacerbation of chronic obstructive pulmonary disease. Am J Emerg Med. 2012; 30(6):896-900.</ref>)

	==Management==		==Management==
	*~~hyperventilation~~ with either NIPPV or intubation/mechanical ventilation depending on severity and patient's mental status		*Hyperventilation with either NIPPV or intubation/mechanical ventilation depending on severity and patient's mental status

	==Disposition==		==Disposition==
	* ~~admission~~ to a monitored setting		*Admission to a monitored setting

	==See Also==		==See Also==

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	==References==		==References==
	*1. Bove, A. (2014). Diving Medicine. Am J Respir Crit Care Med, 189(12), 1479-1486. doi:10.1164/~~rccm.201309-1662ci~~		<references/>
	*2. Clark, J. (2015). Moving in extreme environments: inert gas narcosis and underwater activities. Extrem Physiol Med, 4(1), 1. doi:10.1186/s13728-014-0020-7
	*3. Lindholm, P., & Lundgren, C. (2008). The physiology and pathophysiology of human breath-hold diving. Journal Of Applied Physiology, 106(1), 284-292. doi:~~10.1152/japplphysiol.90991.2008~~		[Category:Pulm]