Hepatopulmonary syndrome laboratory findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Soroush Seifirad, M.D.[2]

Overview

An elevated/reduced concentration of serum/blood/urinary/CSF/other [lab test] is diagnostic of hepatopulmonary syndrome.

OR

Laboratory findings consistent with the diagnosis of hepatopulmonary syndrome include [abnormal test 1], [abnormal test 2], and [abnormal test 3].

OR

[Test] is usually normal for patients with hepatopulmonary syndrome.

OR

Some patients with hepatopulmonary syndrome may have elevated/reduced concentration of [test], which is usually suggestive of [progression/complication].

OR

There are no diagnostic laboratory findings associated with hepatopulmonary syndrome.

Laboratory Findings

Atrial blood gas analysis (ABG) is used both for diagnosis and evaluating the degree (severity) of the HPS as follows:

• Alveolar-arterial oxygen gradient >/= 15 mmHg in room air : The most sensitive measurement of ABG for HPS diagnosis
• Partial pressure of oxygen < 80 mmHg : generally present in sever HPS, late diagnostic finding
• Degree of severity:

There are no diagnostic laboratory findings associated with hepatopulmonary syndrome.

OR

An elevated/reduced concentration of serum/blood/urinary/CSF/other [lab test] is diagnostic of hepatopulmonary syndrome.

OR

[Test] is usually normal among patients with hepatopulmonary syndrome.

OR

Laboratory findings consistent with the diagnosis of hepatopulmonary syndrome include:

• [Abnormal test 1]
• [Abnormal test 2]
• [Abnormal test 3]

OR

Some patients with hepatopulmonary syndrome may have elevated/reduced concentration of [test], which is usually suggestive of [progression/complication].