When a drug causes a change in the cell membrane, preventing additional stimulation of the cell no matter how much stimulation is offered, that drug is called a:

Personality disorder Cluster A is also called the:

A) dramatic cluster. B) odd cluster. C) anxious cluster. D) none of the above.

All of the following are risk factors for gestational diabetes, except?

A) ?obesity. B) ?smoking during pregnancy. C) ?family history of diabetes. D) ?age above 25 years.