04-11-2007, 09:06 PM
presents with history of recurrent pneumonia, otitis media, and sinusitis. She has had bilateral perforated tympanic membranes and mild hearing loss. Chest radiograph reveals bronchiectasis at the left lower and right middle lobes and infiltration at right lower and upper lobes. Total serum IgG, IgA, and IgM levels are normal. Her immunizations are current. Which of the following laboratory tests is the most appropriate next step in this patient™s evaluation?
Total complement (CH50) and C3 and C4 levels
HIV serology
IgG subclass levels
Serum antibodies to tetanus toxoid and pneumococcal antigens
CD4/CD8 ratio
Total complement (CH50) and C3 and C4 levels
HIV serology
IgG subclass levels
Serum antibodies to tetanus toxoid and pneumococcal antigens
CD4/CD8 ratio