A nurse is flushing a patient’s implanted port after adminis-tering medications. The nurse observes that the port flushes, but does not have a blood return. What would be the nurse’snext action based on these findings?a. Gently push down on the needle and flush it a second time.b. Stop flushing and remove the needle; notify the primarycare provider.c. Ask the patient to perform a Valsalva maneuver; changethe patient position.d. Close the clamp; wait 3 minutes, try flushing the portagain.

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