The nurse is to administer a bolus starting dose of heparin to a child who is taking penicillin. What should the nurse do? Select all that apply. 1. Check that the dose is appropriate for the child's...

The nurse is to administer a bolus starting dose of heparin to a child who is taking penicillin. What should the nurse do? Select all that apply.

1. Check that the dose is appropriate for the child's weight.

2. Note that the onset of the medication will be immediate.

3. Follow the administration of the bolus of heparin with an IV infusion of heparin 10 units/kg/h.

4. Monitor partial thromboplastin time (PTT).

5. Discontinue the penicillin until the PTT is at a therapeutic level.