Organisms that no longer respond to anti-infectives that used to be effective are said to be ____
A) nosocomial
B) antigenic
C) immune
D) resistant
D
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Which of the following examples correctly explains how benzodiazepines and barbiturates work to suppress seizures? Choose the correct option
A) Block GABA receptors. B) Mimic the withdrawal of chronic depressant drugs such as alcohol. C) Increase the tendency to fire high-frequency action potentials. D) Prolong the inhibitory actions of GABA.
Which of the following statements regarding emphysema is NOT true?
a. It results from the destruction of alveolar walls. b. It is associated with long-term smoking. c. It may result in a collapsed lung. d. Alveoli become overinflated.
Tuberculin syringes are used for ____
A) administering subcutaneous fluids B) intradermal injections of very small volumes C) intramuscular injections D) obtaining specimens of pulmonary secretions
Which factor accounts for 33 to 50 percent of miscarriages?
a. excessive alcohol or drugs b. heavy lifting c. major genetic disorders d. autoimmune factors e. environmental toxins