Which of the following bind to antigens on cells and attack them directly? 

A. T cells
B. Cytokines
C. B cells
D. Natural killer (NK) cells
E. Haptens


A. T cells
T cells bind to antigens on cells and attack them directly, providing a cell-mediated response.

Health Professions

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Which type of medical practice typically sees a small number of non-urgent conditions?

A. General partnership or group practice B. Retail clinic C. Professional corporation D. Limited liability partnership

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Which of the following medications is generally only used if the patient still has debilitating symptoms from stable COPD, despite inhaled bronchodilator therapy?

a. Antibiotics b. Beta-2 agonists c. Corticosteroids d. Methylxanthines

Health Professions

A 5-year-old patient diagnosed with tracheomalacia after a long intubation has had numerous failures to wean and extubate

What should the respiratory therapist recommend to help alleviate spontaneous breathing prob-lems associated with tracheomalacia until a stent can be placed in the airway? a. BiPAP b. Nasal HFV c. Nasal SiPAP d. Tracheostomy and CPAP

Health Professions

Which act mandated reporting and disclosure requirements for group life and health plans (including managed care plans), permitted large employers to self-insure employee health care benefits, and exempted large employers from taxes on health insurance premiums?

a. Employee Retirement Income Security Act of 1974 b. Health Maintenance Organization Assistance Act of 1973 c. Omnibus Budget Reconciliation Act of 1981 d. Tax Equity and Fiscal Responsibility Act of 1982

Health Professions