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Difficulty: Very hardPharmacological and Parenteral Therapies

A nurse is preparing to administer a prescribed intravenous (IV) push analgesic to a client. The client has a single peripheral IV line currently infusing a continuous medication. The drug reference guide indicates that the continuous infusion is physically incompatible with the prescribed IV push analgesic. Arrange the following nursing actions in the correct sequence to safely administer the medication.

  1. 1Pause the electronic infusion pump delivering the continuous medication.
  2. 2Clamp the primary intravenous tubing immediately above the lowest injection port.
  3. 3Scrub the injection port with an antiseptic swab and administer a 10 mL 0.9% sodium chloride flush.
  4. 4Inject the prescribed intravenous push analgesic over the manufacturer-recommended time.
  5. 5Administer a second 10 mL 0.9% sodium chloride flush at the identical rate used for the analgesic.
  6. 6Unclamp the primary intravenous tubing and resume the continuous electronic infusion.

Answer

The correct sequence is to first pause the pump, clamp the primary tubing, administer a pre-flush, administer the medication, administer a slow post-flush, and finally unclamp and resume the pump.
When administering an IV push medication through a line with a physically incompatible continuous infusion, the primary goal is to prevent the two medications from mixing and precipitating. The nurse must first pause the continuous infusion, then clamp the primary tubing above the lowest injection port to prevent the subsequent flush and medication from traveling backward up the line. A pre-flush clears the incompatible medication from the space between the port and the client. The medication is then administered safely. The post-flush must be administered at the same slow rate as the medication because the flush pushes the remaining medication residing in the IV catheter into the vein; pushing it too quickly would result in rapid administration of the analgesic, risking speed shock. Finally, the tubing is unclamped and the continuous infusion is resumed.

Step-by-Step Solution

1
Pause the electronic infusion pump delivering the continuous medication.
Stops the flow of the incompatible continuous medication.
Prevents further introduction of the incompatible drug into the system during the push procedure, which is the foundational step for preventing precipitation.
2
Clamp the primary intravenous tubing immediately above the lowest injection port.
Isolates the lower portion of the IV line from the main fluid bag.
Fluid follows the path of least resistance. Clamping prevents the flush and IV push medication from flowing retrogradely up the primary tubing and mixing with the incompatible medication.
3
Scrub the injection port with an antiseptic swab and administer a 10 mL 0.9% sodium chloride flush.
Clears the IV line from the injection port to the vein.
Ensures no incompatible continuous medication remains in the physical path of the IV push medication.
4
Inject the prescribed intravenous push analgesic over the manufacturer-recommended time.
Delivers the active medication safely into the systemic circulation.
Administering over the recommended time prevents adverse reactions such as speed shock, severe hypotension, or respiratory depression.
5
Administer a second 10 mL 0.9% sodium chloride flush at the identical rate used for the analgesic.
Clears the analgesic completely from the IV catheter and extension set.
The fluid inside the catheter and extension tubing contains the active analgesic. Flushing rapidly would inadvertently 'slam' this remaining dose into the vein too fast.
6
Unclamp the primary intravenous tubing and resume the continuous electronic infusion.
Restores the continuous therapy.
Ensures the client continues to receive the baseline prescribed infusion without unnecessary interruption.

Key Concept

Management of physically incompatible intravenous medications via a single peripheral access line requires strict procedural isolation using clamping and precise flushing techniques.
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Topics

Pharmacological and Parenteral Therapies

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