system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
True or false
1.  Bronchoscopy with BAL is mainstay of diagnosis for pneumocystic pneumonia
 2. Pneumatoceles are seen in all cases of pneumocystic pneumonia
3.  CD4 count < 350 /µL is indication for prophylaxis against pneumocyctis carini pneumonia
 4. Trimethoprim - sulfamethoxazole is drug of choice for prophylaxis.
assistant
The correct answer is  CD4 count <200 /µL is indication for prophylaxis.
Pneumatoceles may be seen, but not in all cases.