Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics, and obligatory medical device diagnostics – for differential diagnostic clarification.
- X-ray of the chest (X-ray thorax/chest), in two planes – for suspected pneumonia (pneumonia), tuberculosis.
- Computed tomography of the skull (cranial CT, cranial CT or cCT) – if sinusitis (sinusitis), neurological disorders such as meningitis (meningitis), encephalitis (brain inflammation) or lymphoma (tumors of the lymphatic tissue) are suspected.
- Magnetic resonance imaging of the skull (cranial MRI, cranial MRI or cMRI) – if sinusitis, neurological disorders such as meningitis, encephalitis or lymphoma are suspected.
- Electrocardiogram (ECG; recording of the electrical activity of the heart muscle) – if dilated cardiomyopathy (DCM) is suspected; abnormal dilation (dilatation) of the heart muscle leading to heart failure).
- Echocardiography (echo; heart ultrasound) – if dilated cardiomyopathy is suspected.
- Examinations of the gastrointestinal tract (gastrointestinal tract) such as gastroscopy (gastroscopy) or colonoscopy (colonoscopy) – if HIV-associated enteropathy (intestinal disease) is suspected.
- Abdominal sonography (ultrasound examination of the abdominal organs) – if kidney and/or liver changes are suspected, etc.
- Computed tomography (CT) of the abdomen (abdominal CT) – if cholangitis (bile duct inflammation), liver damage due to highly active antiretroviral therapy (HAART) is suspected.
- Magnetic resonance imaging of the abdomen (abdominal MRI) – in suspected cholangitis, liver damage due to highly active antiretroviral therapy (HAART).