Doctor insights on: Hypoxemia and hypercapnia

Share
1

1
What would be the feeling of hypercapnia?

What would be the feeling of hypercapnia?

Not a feeling: Some patients are chronically hypercarbic, and feel normal; if the change is rapid, patients feel very short of breath (eg as though they are suffocating), if it is slightly s
ower in onset they may become very sleepy/confused (co2 narcosis). ...Read more

Hypercapnia (Definition)

Hypercapnia is excessive build up of co2 (carbon dioxide), which is normally primarily cleared by the lungs. Co2 can build up due to hypoventilation (decreased breathing, such as in sleep apnea) or poor exchange of gas between lung and blood, such as in emphysema. Over production of co2 can make clearing it more difficult for the lung to keep up, but this ...Read more


2

2
How to treat hypercapnia?

How to treat hypercapnia?

Cause: Depends on the cause. If it is compensatory for metabolic alcolosis or hypo ventilation due to pleural effusion or something else. The physician at the bed side is the best guide. ...Read more

3

3
Does hypercapnia help accelerate your blood flow?

Yes. In the brain.: Hypercapnea does increase blood flow in the brain by causing cerebral vessel vasodilation. This is part of a process in the brain termed cerebral autoregulation. It also can lead to peripheral vasodilation by direct effects on blood vessels. This may also lead to increased blood flow. However, this would not be a desirable effect for anything other than the body's normal response to changes in ph. ...Read more

4

4
What can cause hypercapnia but with normal oxygen levels so no hyperventilation etc?

What can cause hypercapnia but with normal oxygen levels so no hyperventilation etc?

Sleep apnea: Obstructive sleep apnea or chronic lung disease can cause hypercapnea. Also overdosing on pain medications and sedatives will decrease the breathing rate resulting in hypercapnea. ...Read more

5

5
What is the definition or description of: hypercapnia?

What is the definition or description of: hypercapnia?

CO2 retention: Hypercapnia is excessive build up of co2 (carbon dioxide), which is normally primarily cleared by the lungs. Co2 can build up due to hypoventilation (decreased breathing, such as in sleep apnea) or poor exchange of gas between lung and blood, such as in emphysema. Over production of co2 can make clearing it more difficult for the lung to keep up, but this is rarely the case. ...Read more

7

7
What is the ventilatory response to hypoxia and hypercapnia?

Increase ventilation: The basic answer to this question is that the body increases ventilation in response to hypercapnia or hypoxia. There are both environmental and individual causes that account for variability amongst individuals in their responses to these stimuli. ...Read more

8

8
Can emphysema cause hypercapnia?

Can emphysema cause hypercapnia?

Yes: Hypercapnea is more common with COPD than with emphysema and many patients have a mixture of COPD and emphysema but I have seen a few cases of hypercapnia where emphysema was the primary issue. ...Read more

9

9
Why do patients with chronic bronchitis develop hypercapnia?

Why do patients with chronic bronchitis develop hypercapnia?

Emphysema: Chronic bronchitis is associated with emphysema which reduces gas exchange in the lungs leading to carbon dioxide retention and lower oxygen level. I trust you are under the care of a pulmonologist. ...Read more

See 2 more doctor answers
10

10
What is the blood gas value to determine hypercapnia & hypoxia?

What is the blood gas value to determine hypercapnia & hypoxia?

See below: Hypercapnea or hypercarbia-too much carbon dioxide is measured by the pco2 in a blood gas (elevated). Hypoxia is a lack of oxygen in the blood and measured by the po2 (low). ...Read more

11

11
Can hypercapnia cause brain damage to a baby?

Can hypercapnia cause brain damage to a baby?

Hypercapnia...: ...Is usually accompanied by hypoxia, and of the two it is the hypoxia that does most of the damage. ...Read more

12

12
Lot of info behind this, but why would person get hypercapnia, 1 req. Vent, 3 mo in a row all of a sudden if has had asthma/bad lungs for yrs?

Lot of info behind this, but why would person get hypercapnia, 1 req. Vent, 3 mo in a row all of a sudden if has had asthma/bad lungs for yrs?

Asthma: This depends on many things. Asthma can simply be a progressive disease getting worse and worse damaging the lung tissue. There's probably some component of emphysema which is much worse than asthma. Did the person smoke? Did they take care of themselves? Did they treat the asthma appropriately? ...Read more

13

13
I had a co2 blood test done and it said I was at 27, which is close to 30 (hypercapnia). Should I be worried? I had a brief exposure to concrete dust

I had a co2 blood test done and it said I was at 27, which is close to 30 (hypercapnia). Should I be worried? I had a brief exposure to concrete dust

TCO2: TCO2 on the blood test (usually electrolyte panel) represents bicarbonate (sodium bicarbonate) and volatile CO2 and is different from arterial CO2 = partial pressure of CO2 in the blood, which is done usually in the hospital setting. Most adult values are in that range (24-32). When it is high it suggest that you may have chronic respiratory acidosis, but 27 is fine ...Read more

15

15
Why does airway obstruction in chronic lung disease lead to hypercapnia?

Why does airway obstruction in chronic lung disease lead to hypercapnia?

Not alwasy: The more inefficient the damaged lung becomes at eliminating co2 the more you have to work to breath and the more work the more co2 you make. Once co2 is up for a period of time your body stops responding to theco2 &switches to o2 for the drive. Thus co2 rises even more as the body stops response to co2. This makes o2 dangerous to use. Most COPD get no rise in co2. You need a blood test to know. ...Read more

See 1 more doctor answer
16

16
What is refractory hypoxemia in layman's terms?

What is refractory hypoxemia in layman's terms?

Lack of oxygen: Refractory hypoxemia is when a patient is lacking oxygen and even with all known treatments in place, can't improve their oxygen levels.. The prognosis is poor. ...Read more

17

17
What is the best treatment for hypoxemia?

What is the best treatment for hypoxemia?

Underlying dz: Treatment is directed to the underlying conditions. With CHF diuretics are given. If the pts has COPD then oxygen and nebulized breathing treatments are used ...Read more

18

18
What intervention works for a patient with hypoxemia?

What intervention works for a patient with hypoxemia?

Hypoxemia: Sometimes the cause is correctable and other times you have to breathe supplemental oxygen. A physician evaluation should be able to see if the condition can be corrected ...Read more

19

19
Can poor peripheral perfusion increase risk for hypoxemia?

Can poor peripheral perfusion increase risk for hypoxemia?

Related but..: Usually if there is hypoxemia the the body shuts down peripheral perfusion and prefrential flow directed cetrally to vital organs. ...Read more

20

20
Can you tell me about nursing intervention for patient with hypoxemia?

Hypoxemia...: Refers to low levels of oxygen in the arterial blood which can lead to hypoxia (low levels in the tissues). This information is obtained by lab-ABG. If the patient is having symptoms-respiratory distress, difficulty breathing, increased rate of breathing a nurse should start oxygen and immediately alert the doctor. If no symptoms the nurse should make sure the doctor is aware of the abnormal lab ...Read more

Dr. Ihab Ibrahim
23 Doctors shared insights

Very Low Oxygen Level (Definition)

This really depends on the patient. For normal patient who does not smoke very low oxygen level could be defined as an oxygen saturation less than 88% or a partial pressure of oxygen measured in blood gas less than 60 mmhg. For an active smoker these numbers may be different. For someone with underlying lung disease again these ...Read more