NCLEX RN Questions on Respiratory System Related

Review NCLEX RN Questions on Respiratory System related questions and content

The most common preventive drug therapy for tuberculosis is:

  • A. Prednisone.
  • B. Isoniazid.
  • C. Gamma globulin.
  • D. Aminophylline.
Correct Answer: B

Rationale: The correct answer is B: Isoniazid. Isoniazid is the most common preventive drug therapy for tuberculosis due to its effectiveness in treating latent TB infections. It works by killing the bacteria that cause TB. Prednisone is a steroid and not used as a preventive therapy for TB. Gamma globulin is used for immune deficiency disorders, not TB prevention. Aminophylline is a bronchodilator used for asthma, not TB prevention. In summary, isoniazid is the preferred choice for TB prevention due to its specific antimycobacterial action, while the other options are unrelated or ineffective for this purpose.