Blood tests cannot detect myocarditis in general.
Routine blood test is mainly to check the red blood cell system, white blood cell system and platelet system and other related indexes, only through the routine blood test can not detect myocarditis. The diagnosis of myocarditis requires a combination of medical history, clinical manifestations, electrocardiogram, myocardial enzymes or echocardiogram, and clear evidence of myocardial damage.
Patients with myocarditis are usually asymptomatic if their symptoms are mild. Most patients present with fever, generalized lethargy, nausea, and muscle aches and pains one to three weeks before the onset of the disease. Physical examination often shows arrhythmia and atrioventricular block. ST-T changes are common in electrocardiograms, such as T-wave inversion or mild ST-segment displacement, etc. Cardiac enzymes may also be abnormally elevated in patients.
If you feel unwell, it is recommended that you follow the doctor’s instructions to carry out the relevant examinations, and the diagnosis of the disease needs to be carried out by a specialized doctor.