. Diluted in 300 mL of 5% dextrose in water (D5W).
. Rapid IV push over 1 minute.
Test-Taking Tip
Eliminate: large volume (Answer 1), too fast (Answer 2), and too slow (Answer 3). Think safety.
Content Area: Adult Health, Neurological; Integrated Process: Nursing Process, Implementation; Cognitive Level: Application; Client Need/Subneed: Physiological Integrity/Pharmacological and Parenteral Therapies/Medication Administration
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Answer 1 is incorrect because the drug is incompatible in D5W. NaCl 0.9% should be used for dilution. Answer 2 is incorrect because the rate is too rapid. It should be given no faster than over 6 minutes. Answer 3 is incorrect because the infusion should be completed within 4 hours. Answer 4 is correct because phenytoin (Dilantin) may be given via direct IV no faster than 50 mg/min. If diluted, use saline.