Question

Difficulty: MediumPharmacological and Parenteral Therapies

An assigned nurse is preparing to initiate an intermittent intravenous (IV) piggyback antibiotic for a patient receiving a continuous primary infusion of 0.9%0.9\% sodium chloride. The primary line is controlled by an electronic infusion device. After performing hand hygiene and verifying medication rights, how should the nurse sequence the setup steps?

  1. 1Verify the compatibility of the antibiotic with the primary infusion solution.
  2. 2Spike the secondary medication bag and prime the new secondary IV tubing.
  3. 3Scrub the proximal Y-port on the primary IV tubing with an antimicrobial swab.
  4. 4Attach the secondary tubing to the cleansed primary line port and lower the primary IV bag.
  5. 5Open the secondary roller clamp and initiate the prescribed rate on the infusion device.

Answer

The correct sequence is to first verify compatibility, then spike and prime the secondary tubing, scrub the proximal Y-port, attach the tubing while lowering the primary bag, and finally open the clamp to start the infusion.
Administering a secondary infusion requires strict adherence to safety and infection control principles. The nurse must first ensure compatibility to prevent precipitation. Next, the equipment is prepared by spiking and priming the secondary line. Asepsis is maintained by scrubbing the access hub before connection. Proper physical setup requires lowering the primary bag so the pump pulls from the higher secondary bag. Finally, the clamps are opened and the pump is started.

Step-by-Step Solution

1
Verify compatibility of the antibiotic with the primary solution
Confirmation that the solutions are safe to mix
Incompatible solutions can crystallize or cause loss of medication efficacy.
2
Spike the secondary bag and prime the tubing
Tubing is filled with medication and free of air
Removes air to prevent an air embolism from reaching the patient.
3
Scrub the proximal Y-port
The connection site is disinfected
Prevents the introduction of pathogens into the vascular system.
4
Attach the secondary tubing and lower the primary bag
The secondary line is connected and positioned properly
Lowering the primary bag allows the secondary fluid to exert higher hydrostatic pressure, causing it to infuse first.
5
Open the secondary roller clamp and start the infusion
The antibiotic begins to infuse into the patient
Initiates the actual delivery of the prescribed medication at the safe rate.

Key Concept

Intravenous Piggyback (IVPB) Administration Safety
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