What is the diagnosis based on the following blood gas values? HCO3: 20 (reference range: 13-22 mmol/L), PCO2: 35 (reference range: 27-40 mmHg), pH: 7.37 (reference range: 7.36-7.4... What is the diagnosis based on the following blood gas values? HCO3: 20 (reference range: 13-22 mmol/L), PCO2: 35 (reference range: 27-40 mmHg), pH: 7.37 (reference range: 7.36-7.45)
Understand the Problem
The question presents a set of blood gas (ABG) values: HCO3 (Bicarbonate), PCO2 (Partial pressure of carbon dioxide), and pH. The question asks for the diagnosis based on these values and their reference ranges. This requires interpreting the ABG results to determine the patient's acid-base status.
Answer
Normal Acid-Base Balance
Based on the provided blood gas values (pH: 7.37, PCO2: 35 mmHg, HCO3: 20 mmol/L), the diagnosis is Normal Acid-Base Balance. All values fall within the normal reference ranges.
Answer for screen readers
Based on the provided blood gas values (pH: 7.37, PCO2: 35 mmHg, HCO3: 20 mmol/L), the diagnosis is Normal Acid-Base Balance. All values fall within the normal reference ranges.
More Information
Arterial blood gas (ABG) analysis is a crucial tool for evaluating a patient's acid-base balance, ventilation, and oxygenation. Normal values are pH: 7.35-7.45, PCO2: 27-40 mmHg, and HCO3: 13-22 mmol/L.
Tips
A common mistake is to focus on only one or two values instead of assessing all three (pH, PCO2, and HCO3) in conjunction. Always compare the patient's values to the reference ranges.
Sources
- Arterial Blood Gas - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
- Arterial Blood Gas (ABG): What It Is, Purpose, Procedure & Levels - my.clevelandclinic.org
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