layout
default
title
ABG Table - All Possible Value Pairs
ABG Value Table with Classifications This table shows all possible combinations of PaCO₂ (10-100 mmHg) and HCO₃⁻ (5-50 mEq/L) with their calculated pH values and classifications.
</tr>
</thead>
<tbody>
<!-- Table will be populated by JavaScript -->
</tbody>
</table>
<style>
.table-container {
max-height: 80vh;
overflow-y: auto;
margin: 20px 0;
border: 1px solid #ddd;
border-radius: 5px;
}
#abg-table {
width: 100%;
border-collapse: collapse;
}
#abg-table th, #abg-table td {
padding: 8px 12px;
border: 1px solid #ddd;
text-align: center;
}
#abg-table th {
background-color: #f5f5f5;
position: sticky;
top: 0;
}
#abg-table tr:nth-child(even) {
background-color: #f9f9f9;
}
#abg-table tr:hover {
background-color: #f0f0f0;
}
</style>
<script>
function calculatePH(paco2, hco3) {
const pK = 6.1;
const PCO2_conversion = 0.03;
return pK + Math.log10(hco3 / (PCO2_conversion * paco2));
}
function classifyABG(pH, PaCO2, HCO3) {
// Define the normal ranges
const normalPaCO2 = PaCO2 >= 35 && PaCO2 <= 45;
const normalHCO3 = HCO3 >= 22 && HCO3 <= 26;
const normalPH = pH >= 7.35 && pH <= 7.45;
// Acidosis conditions (pH < 7.35)
if (pH < 7.35) {
if (PaCO2 > 45) {
if (HCO3 < 22) {
return ["Mixed Acidosis", 'red'];
} else if (HCO3 > 26) {
return ["Partially Compensated Respiratory Acidosis", 'orange'];
} else {
return ["Uncompensated Respiratory Acidosis", 'darkorange'];
}
} else if (HCO3 < 22) {
if (PaCO2 < 35) {
return ["Partially Compensated Metabolic Acidosis", 'yellow'];
} else if (normalPaCO2) {
return ["Uncompensated Metabolic Acidosis", 'gold'];
} else {
return ["Undefined Acidosis", 'gray'];
}
} else {
return ["Undefined Acidosis", 'lightgray'];
}
}
// Alkalosis conditions (pH > 7.45)
else if (pH > 7.45) {
if (PaCO2 < 35) {
if (HCO3 < 22) {
return ["Partially Compensated Respiratory Alkalosis", 'lightblue'];
} else if (HCO3 > 26) {
return ["Mixed Alkalosis", 'purple'];
} else {
return ["Uncompensated Respiratory Alkalosis", 'blue'];
}
} else if (HCO3 > 26) {
if (PaCO2 > 45) {
return ["Partially Compensated Metabolic Alkalosis", 'cyan'];
} else if (normalPaCO2) {
return ["Uncompensated Metabolic Alkalosis", 'deepskyblue'];
} else {
return ["Undefined Alkalosis", 'gray'];
}
} else {
return ["Undefined Alkalosis", 'lightgray'];
}
}
// Normal pH range (7.35-7.45)
else {
// Fully compensated conditions
if (pH >= 7.35 && pH <= 7.399) {
if (PaCO2 > 45 && HCO3 > 26) {
return ["Fully Compensated Respiratory Acidosis", 'darkgreen'];
} else if (PaCO2 < 35 && HCO3 < 22) {
return ["Fully Compensated Metabolic Acidosis", 'limegreen'];
}
} else if (pH >= 7.401 && pH <= 7.45) {
if (PaCO2 > 45 && HCO3 > 26) {
return ["Fully Compensated Metabolic Alkalosis", 'mediumseagreen'];
} else if (PaCO2 < 35 && HCO3 < 22) {
return ["Fully Compensated Respiratory Alkalosis", 'springgreen'];
}
}
// Normal condition
if (normalPaCO2 && normalHCO3) {
return ["Normal", 'green'];
}
return ["Undefined", 'gray'];
}
}
// Generate the table
document.addEventListener('DOMContentLoaded', function() {
const tableBody = document.querySelector('#abg-table tbody');
const paco2Step = 5; // Step size for PaCO₂ to make table manageable
const hco3Step = 1; // Step size for HCO₃⁻
// Clear any existing rows
tableBody.innerHTML = '';
// Generate rows for the table
for (let paco2 = 10; paco2 <= 100; paco2 += paco2Step) {
for (let hco3 = 5; hco3 <= 50; hco3 += hco3Step) {
const pH = calculatePH(paco2, hco3);
const [classification, color] = classifyABG(pH, paco2, hco3);
const row = document.createElement('tr');
row.innerHTML = `
`;
tableBody.appendChild(row);
}
}
});
</script>
PaCO₂ (mmHg)
HCO₃⁻ (mEq/L)
pH
Classification
color
${paco2}
${hco3}
${pH.toFixed(2)}
${classification}