The principal mechanism of action of phenytoin (Dilantin) in treating status seizures is the:
A) blocking of GABA receptor sites to prevent further cellular activity in the CNS.
B) influx of calcium ions through calcium channels to enhance depolarization.
C) blocking of acetylcholine receptor sites at the neuromuscular junction to prevent convulsions.
D) prevention of sodium ions entering the cell by closing sodium channels.
D
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Indicate whether this statement is true or false.
A patient complains of extreme pain when you insert the needle during a venipuncture attempt. The pain does not subside, but the patient does not feel any numbness or burning sensation. You know the needle is in the vein because the blood is flowing into the tube. You have only two tubes to fill, and the first one is almost full. What should you do?
a.) Ask the patient if he or she wants you to continue the draw. b.) Discontinue the draw and attempt collection at another site. c.) Distract the patient with small talk and continue the draw. d.) Tell the patient to hang in there as you have only one tube left.