When data can be transmitted in both directions simultaneously it is called

Dry powder inhalers (DPIs):

A) use fluorocarbon propellants B) deliver liquid aerosol medication C) require a pressurized-gas source D) none of the above

Which of the following are common effects of LSD?

A. Altered mental status, confusion, paranoia, B. Grandiose feelings, hallucinations, mystical experiences, flashbacks C. Slowed thinking, slowed reflexes, slowed respiration, loss of anxiety D. Hyperactivity followed by exhaustion, insomnia, loss of appetite E. Decreased level of consciousness, detachment, drowsiness, impaired judgment