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Doctor insights on: How Does Sleep Apnea Affect Arterial Blood Gas

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How does sleep apnea affect arterial blood gas?

How does sleep apnea affect arterial blood gas?

Can temporarily lower 02: When someone is having apnea they stop breathing and this can cause a decrease in the blood oxygen and an increase in the blood carbon dioxide. Once they start breathing again usually this corrects itself fairly quickly. ...Read more

Dr. John Landi
1 doctor shared a insight

Artery (Definition)

Arteries are defined as blood vessels which carry blood away from the heart (to either the body or lungs). Arteries: higher pressure, thicker walls, stretch (pulse) with each heart contraction & deliver blood to the arterioles which control the flow to individual capillaries. Veins are blood vessels which carry blood from capillaries back to the heart (body to right heart; ...Read more


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In a person with sleep apnea, what causes the rises and falls in oxygen saturation of arterial blood during sleep?

In a person with sleep apnea, what causes the rises and falls in oxygen saturation of arterial blood during sleep?

Sleep apnea: Sleep apnea is defined as stopping breathing for 10 seconds. During that time, the body is not getting any oxygen. In addition , there can be instances that last less than 10 seconds, or where a less than adequate effort to breath is attempted. These also reduce the oxygen intake. ...Read more

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How does smoking affect arterial blood gas results?

How does smoking affect arterial blood gas results?

Measure CO level: An arterial blood gas measures the blood pH (normal 7.40), po2 (partial pressure of oxygen), pco2, partial pressure of co2 and the bicarbonate (sodium bicarbonate) level is calculated. Smoking increases carboxyhemoglobin level with carbon monoxide binding to the hemoglobin displacing oxygen. The po2 is unaffected by carbon monoxide but the hemoglobin delivers carbon monoxide (a poison) to tissues instead of oxygen. ...Read more

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Does it hurt to get an arterial blood gas done?

Does it hurt to get  an arterial blood gas done?

Just a needle stick: An arterial blood gas (abg) is a blood draw from an artery rather than a vein. For some there is slightly more discomfort with an abg than there is with a routine blood draw. For others there is less pain. ...Read more

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Arterial blood gas question? Do they stick you for it?

Arterial blood gas question? Do they stick you for it?

Yes: As the name implies, an arterial blood gas is when they check your gas levels (oxygen and carbon dioxide) from the blood in your arteries. Therefore, you must be stuck with a needle in your artery (usually the radial artery for an adult). The only time you wouldn't be stuck for it is if you already have a special IV line (arterial line) in place - but then you're most likely in the icu. ...Read more

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Why is an modified allen's test performed when drawing arterial blood gas?

Why is an modified allen's test performed when drawing arterial blood gas?

To avoid ischemia: Allen test is done to ensure that dual arterial blood supply to the hand is intact. If both and radial and ulner arteries are not intact and if the remaining artery is damaged it could disable the hand, therefore allen test is essential to ensure adequate blood supply to the hand in case of injury to the artery from which blood may be drawn. ...Read more

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Which has higher co2, cord arterial blood gas or venous?

Which has higher co2, cord arterial blood gas or venous?

The non-red blood: in the cord I forget which one has the oxygen, but that has the good air and not the bad air. I'm pretty sure it works reasonably with arterial going IN with oxygen and nutrients and coming back out with wastes and CO2. ...Read more

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I had an arterial blood gas drawn today and now my wrist is really swollen. It only hurts a little. Is this normal or cause for concern?

I had an arterial blood gas drawn today and now my wrist is really swollen. It only hurts a little. Is this normal or cause for concern?

Hematoma wrist: its difficult to tell without seeing you, the main concern is that blood leaks enough to cause compression on the nerved and blood supply to the hand.
the important things to look at in the speed of progress of the swelling, or development of pain, pain on passive stretch of muscles in the hand.
I suggest urgent medical review ...Read more

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Does getting an arterial blood gas hurt much?

Does getting an arterial blood gas hurt much?

A bit: Arteries are more muscular than veins and have a higher pressure inside. The arterial stick is not much different than a venous blood draw but it has to be held with pressure plus have a pressure dressing afterward. ...Read more

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What is the normal range for arterial blood gas?

What is the normal range for arterial blood gas?

Blood gas: Ph: 7.35-7.45
pco2: 35-45
hco3: 22-26
po2:80-100mmhg
o2 saturation:95-100mmhg. ...Read more

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How would oxygen deprivation change arterial blood gas levels?

How would oxygen deprivation change arterial blood gas levels?

Breath rate increase: O2 deprivation will typically cause people to breath faster. Abg measures levels of oxygen, carbon dioxide and blood ph. Faster breathing causes a drop in co2 which then causes the blood to have an increase in ph (towards basic, not acidic). Over time, the body would compensate for this ph change via acid retention by the kidney and although the co2 would remain low, the ph would approach normal. ...Read more

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When would you look at cord venous blood gas levels and arterial blood gas levels?

When would you look at cord venous blood gas levels and arterial blood gas levels?

Difficult delivery: These tests are used to help predict how difficult the delivery was for the baby. Any difficult delivery will often have cord gases taken; if baby is showing signs of distress, then an arterial blood gas from baby may be taken as well. ...Read more

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Can high o2 affinity hemoglobin cause arterial blood gas values of high o2?

Can high o2 affinity hemoglobin cause arterial blood gas values of high o2?

Less O2 delivery: High o2 affinity HGB (leftward shift in o2 saturation curve) means it requires a higher partial pressure of o2 to achieve the same o2 saturation. The HGB is more tightly bound to o2 and less is delivered to the tissues. More o2 will be necessary to adequately deliver oxygen to the tissues. ...Read more

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Can you explain under what conditions is arterial blood gas analysis [abg] used?

Can you explain under what conditions is arterial blood gas analysis [abg] used?

Several: Reasons to check abg. These include checking for oxygen levels to make sure individual has adequate level of oxygen. Co2 levels are checked to rule out co2 retention as that can occur in patients with chronic obstructive pulmonary disease. Also ph levels are checked in abg to make sure that body metabolism is functioning properly. ...Read more

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Is it possible to develop an air embolism from an arterial blood gas draw?

Is it possible to develop an air embolism from an arterial blood gas draw?

Air embolus: In theory it can happen but 90.99% it does not happen. Unless there is accidental injection of air into the blood vessel
...Read more

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How can I explain arterial blood gas?

How can I explain arterial blood gas?

Blood Gases: I am not sure what context you are asking about. The questions is very ambiguous. What specifically prompts this question?

But, blood gases tell the medical team how well the oxygen and carbon dioxide balance is being maintained in the body. It can tell how the fragile balance of being acidic or basic is in a sick person. It is used in many instances in the hospital with very ill patients. ...Read more

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How can you interpret a arterial blood gas test?

How can you interpret a arterial blood gas test?

Difficult: Interpreting blood gas results requires a thorough knowledge of respiratory physiology, metabolic alterations, changes due to body making compensation for the abnormalities and effect of various interventions. Arterial blood gas results is not something to be interpreted by a lay person. ...Read more

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Is it true that an arterial blood gas of 92% is bad?

Is it true that an arterial blood gas of 92% is bad?

Yes: Its not horribly bad but bad enough that something has to be done to raise the oxygen level in the hemoglobin. We consider the oxygen to be low at 60 which coincides with a blood gas of 90 thus at 92 you are nearing a bad level ...Read more

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What is the definition or description of: arterial blood gas?

Blood test: It's a blood test where blood is drawn from your artery (and not the vein where it's usually taken from). It is done to evaluate the amount of oxygen, carbon dioxide, acid and several other parameters in the blood. ...Read more

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What are the normal ranges in arterial blood gas?

What are the normal ranges in arterial blood gas?

See below: Here are the "ideal" values. However, it all depends on the situation and the relationships between the numbers (i.e. Is the body compensating appropriately for the situation). Ph: 7.35-7.45, po2 80-120, pco2 38-42, hco3 22-28. ...Read more

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Arterial blood gas, what is this?

Arterial blood gas, what is this?

Mearsurment: THe sampling of blood from an artery gives the tester a clue as to how much oxygen your cells are carrying, the level of Co2 to see if respiration and acid base balance is in check. ABG is often performed during asthma to see the pulmonary status and whn one is on a ventilatr to breathe. It can ensure the ventilator is producing enough ventialtion ...Read more

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What ia an ?Arterial blood gas exam?

What ia an ?Arterial blood gas exam?

Blood oxygen test.: An abg is a test that measures the oxygen tension, carbon dioxide, and acidity (ph) of blood taken from an artery. It is used to determine how well the blood is being oxygenated and how well gas exchange is occuring. This information is vital when caring for patients with critical illness or respiratory disease. ...Read more

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What are they looking for in a arterial blood gas?

What are they looking for in a arterial blood gas?

O2/CO2 exchange: Abg is used for two purposes: 1) how your lungs are handling the exchange of oxygen and carbon dioxide 2) the acid/base metabolism affected by breathing and various metabolic disturbances (eg., diabetic coma, toxic ingestion of substances, sepsis). ...Read more

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Arterial blood gas showed my pO2 was HIGH at 103. How is this possible? I'm not on oxygen therapy or anything like that. I was breathing normally.

Arterial blood gas showed my pO2 was HIGH at 103. How is this possible? I'm not on oxygen therapy or anything like that. I was breathing normally.

High PO2 level: It is important to know the rest of the blood gas test results. pH? pCO2? Bicarbonate? Your doctor can put it all in perspective for you. What was the O2 sat? If low, it might point to a methemoglobinemia, perhaps from some meds you take. Best to discuss the entire blood gas study with your provider. Normal PO2 shouldn't be above 102. . ...Read more

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I had an arterial blood gas sample about 9 days ago. I still have a large bruise on my wrist over the artery where the sample was collected. normal?

Next time some else: The next you need to get blood drawn have a different phlebotomist draw it and after it is drawn and you are given a cotton pad to hold over the insertion site hold it there FIRMLY for 10 minutes! Good luck. This is a bloody business you know! ...Read more

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Arterial blood gas results: PH- 7.431, pCO2- 40.1, HCO3- 26.1, BE- 1.7. Are these normal or elevated? Could this cause Ventricular tachycardia?

Normal blood gas ABG: The result you've provided so far seem within the reference range for most blood gas machines - so, "average". One result you didn't list is the pO2, which is a measure of the oxygen content of arterial blood. A low pO2 can cause ventricular tachycardia (VT); however, I suspect the ABG was used as part of a wider panel of tests to help determine cause of VT. Talk to the doctor who ordered the test ...Read more

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I have generalized t/c seizures and am having trouble breathing. Should I request a arterial blood gases test from my doctor?

I have generalized t/c seizures and am having trouble breathing. Should I request a arterial blood gases test from my doctor?

Trouble breathing: You should probably call your doctor as soon as possible if you are having trouble breathing, or go to the ER. Arterial blood gases may or may not be indicated after you have been evaluated. ...Read more

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2 weeks ago my blood pH level was -11 the doc tried to take arterial blood gases but couldn't. He was confused by -11 pH level. What could cause it?

2 weeks ago my blood pH level was -11 the doc tried to take arterial blood gases but couldn't. He was confused by -11 pH level. What could cause it?

PH: pH range runs only from 0 (very acidic) to 14 (very basic/alkali). The body's normal pH is right around 7.35ish. I am confused by the -11 reading as well as there is no such possibility to have that as a result. Maybe it was a result of equipment malfunction, or an error message by the computer ...Read more

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How does chronic alcohol abuse affect Arterial blood gases?

How does chronic alcohol abuse affect Arterial blood gases?

Depends: Acute alcohol intoxication can cause acidosis. The effect blood gases from chronic alcoholism would depend on the end-organ damage. Cirrhosis with marked ascites may cause respiratory acidosis. Hepato-renal failure may result in metabolic acidosis. ...Read more

Dr. Patricia Mcgarry
446 doctors shared insights

Obstructive Sleep Apnea (Definition)

Sleep apnea has two causes. It may be 'central' or 'obstructive'. Central apnea occurs as a disorder in the way the brain controls breathing. Obstructive sleep apnea is much more common and involves an anatomical blockage of the airway. Usually, the tongue blocks the airway, preventing the passage of air between the a sleep study is needed to diagnose particular ...Read more


Dr. Patrick Melder
1,062 doctors shared insights

Apnea (Definition)

This is the cessation of breathing for 10 seconds or more. Most apnea is obstructive being caused by collapse or obstruction of the airway leading to lack of air flow. However, it can be a central process, where the respiratory center of the brain fails to signal the respiratory respiratory system to initiate a breath. Lastly, some apnea is mixed central ...Read more