The contractile vacuole acts to regulate quantity of water in a cell. In freshwater environments the concentration of solutes inside the cell is higher than outside the cell (i.e., the environment is hypotonic).he contraction of the contractile vacuole and the expulsion of water out of the cell is called systole. Water always flows first from outside the cell into the cytoplasm, and is only then moved from the cytoplasm into the contractile vacuole for expulsion.
Induced coma. A barbiturate-induced coma, or barb coma, is a temporary coma (a deep state of unconsciousness) brought on by a controlled dose of a barbiturate drug, usually pentobarbital or thiopental.
In an emergency, a practitioner may call-in a prescription for a Schedule II controlled. substance by telephone to the pharmacy, and the pharmacist may dispense the. prescription provided that the quantity prescribed and dispensed is limited to the. amount adequate to treat the patient during the emergency period.