# What are normal blood gas values?

## What are normal blood gas values?

The following are normal ranges for results of a blood gas test: pH: 7.35–7.45. partial pressure of oxygen (PaO2): 80–100 millimeters of mercury (mmHg) partial pressure of carbon dioxide: 35–45 mmHg.

What are ABG levels?

An arterial blood gases (ABG) test measures the acidity (pH) and the levels of oxygen and carbon dioxide in the blood from an artery. This test is used to find out how well your lungs are able to move oxygen into the blood and remove carbon dioxide from the blood.

### How do you determine ABG values?

Analysis and interpretation of basic ABG values can be determined by the following steps.

1. Examine the pH level. If pH falls below normal (less than 7.35) the patient is acidotic; if it rises above normal (more than 7.45) the patient is alkalotic.
2. Examine the PaCO2 level.
3. Examine the HCO3 and PaO2 levels.

How do you interpret an ABG?

Rules for rapid clinical interpretation of ABG

1. Look at pH – < 7.40 – Acidosis; > 7.40 – Alkalosis.
2. If pH indicates acidosis, then look at paCO2and HCO3-
3. If paCO2is ↑, then it is primary respiratory acidosis.
4. If paCO2↓ and HCO3- is also ↓→ primary metabolic acidosis.
5. If HCO3-is ↓, then AG should be examined.

## What are the normal blood gases for a newborn?

Pediatric Normal Laboratory Values Blood gases pH Capillary/arterial Age Newborn 7.33–7.49 1 day 7.25–7.43 2–30 days 7.32–7.43 1 month 7.34–7.43

What is the normal pH of arterial blood gas?

Normal Arterial Blood Gas Values pH : 7.36-7.44 PaCO2 : 36-44 mm Hg HCO3 : 22-26 mEq/L

### What’s the normal pH for PaCO2 in infants?

not present Value Normal Range pH 7.35–7.45 PaCO2 35–45 mmHg PaO2 term infant preterm infant 50–70 mmHg 45–65 mmHg HCO3– 22–26 mEq/liter

Where can I find Pediatric Hematology reference ranges?

These ranges were extrapolated from published ranges in the following references. Nathan, David G. And Oski, Frank A. “Hematology of Infancy and Childhood”, third addition, 1987. Lanzkowsky, Philip, “Pediatric Hematology-Oncology, a Treatise for the Clinician”, 1980.