[php]
if ($_POST) {
$a = $_POST[‘serumalb’];
$b = $_POST[‘ascitesalb’];if ((empty($a)) || (empty($b))) {
$result = “Fill in all variables”;
}
if (empty($result)) {
$var1 = $a-$b;
$result = $var1;
}
echo “Result : “;
echo $result;
echo ” *”;
}
[/php]
[pullquote]SAAG is the standard for defining presence of portal hypertension (does not differentiate cause) in patients with ascites.[/pullquote]
Formula :
SAAG = (albumin concentration of serum) – (albumin concentration of ascitic fluid).
Explanation of Result :
A high gradient (> 1.1 g/dL) indicates the ascites is due to portal hypertension with 97% accuracy.
About the Calculation :
* Please verify all calculations prior to clinical use.