HESI Practice Test Pharmacology Related

Review HESI Practice Test Pharmacology related questions and content

A client has a prescription for heparin 1,000 units IV STAT. Several pre-filled syringes of low molecular weight heparin are available in the client's medication drawer. Which action should the nurse implement?

  • A. Dilute the available heparin in 250ml of normal saline solution prior to IV administration
  • B. Advise the pharmacy on the need to deliver a vial of heparin to the nursing unit immediately
  • C. Calculate and administer the equivalent dose of the available low molecular weight heparin
  • D. Request a prescription to change the route of administration and use the available heparin
Correct Answer: B

Rationale: In this scenario, the nurse should contact the pharmacy to obtain the correct heparin formulation as the prescription calls for heparin 1,000 units IV STAT. Low molecular weight heparin is not the same as unfractionated heparin, and therefore, the nurse should not administer the available low molecular weight heparin without first obtaining the correct medication. Diluting the available heparin, calculating an equivalent dose, or changing the route of administration would not address the discrepancy between the prescribed heparin and the available low molecular weight heparin.