Sgpt and crp test in swine flu
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CDC influenza testing laboratory diagnostic tests CRP liver enzymes
SGPT (ALT) and CRP are not tests to diagnose swine flu (influenza A/H1N1).
- CRP (C-reactive protein): A nonspecific marker of inflammation. It can be raised in flu, but also in many viral and bacterial infections. A high or rising CRP may prompt the clinician to look for complications, especially bacterial pneumonia, rather than proving H1N1 itself.
- SGPT / ALT: A liver enzyme. It may rise mildly during a significant viral illness, dehydration, medication use, low oxygen, or due to a pre-existing liver condition such as fatty liver. It is used to assess liver involvement, not to confirm swine flu.
To confirm influenza, the appropriate test is a nasal/throat swab influenza RT-PCR or other molecular test. Rapid antigen flu tests may be used, but a negative test does not always exclude influenza. The CDC influenza testing guidance recommends molecular tests such as RT-PCR for higher diagnostic accuracy.
Seek urgent medical care for breathlessness, persistent chest pain, confusion, bluish lips, inability to drink, very low urine output, or worsening fever/cough.
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