A nurse working in the emergency department is admitting a client who has pertussis. Which of the following actions should the nurse take?

Choice A reason: While it is generally advised to avoid taking blood pressure readings from an arm with a PICC line to prevent complications, if the right arm cannot be used, as may be the case with the other clients listed, the nurse may have to use the left arm with extreme caution, ensuring not to disrupt the PICC line.

Choice B reason: Bell's palsy affects facial nerves and does not typically impact the measurement of blood pressure. Therefore, there is no contraindication to using the left arm for a blood pressure reading in a client with left-sided Bell's palsy.

Choice C reason: A client with right-sided weakness due to Parkinson's disease can have their blood pressure taken on the left side if the right side is too weak to provide an accurate reading or if using the right side would cause discomfort to the client.

Choice D reason: For a client with a right upper extremity arteriovenous fistula, typically created for dialysis access, blood pressure measurements should not be taken on that arm to avoid damaging the fistula. Therefore, the left arm should be used for blood pressure readings in this case.

Choice A reason: Encouraging family members to press the PCA button for the client is not recommended. The PCA device is designed to be used by the patient to manage their own pain. Allowing someone other than the patient to administer the medication can lead to over-sedation or respiratory depression. The patient must have control over the PCA device to ensure that they are receiving the medication based on their pain level and not someone else's perception of their pain.

Choice B reason: Monitoring the client's respiratory status every 4 hours is important but may not be sufficient for a patient receiving morphine via a PCA device. According to clinical guidelines, respiratory rate, sedation, and pain scores must be recorded more frequently after the initiation of PCA therapy—typically every 15 minutes for the first hour, then every 30 minutes for the next 2 hours, and hourly until 24 hours post-operation. This is to ensure early detection of any adverse effects such as respiratory depression, which is a risk with opioid administration.

Choice C reason: Teaching the client how to self-medicate using the PCA device is the correct action. Patient education is crucial for the effective use of PCA. The patient should be instructed on how to use the device, including when to press the button and the importance of only the patient controlling the button. This empowers the patient to manage their pain effectively and safely, ensuring that they receive the medication when needed and reducing the risk of over-sedation or under-medication.

Choice D reason: Administering an oral opioid for breakthrough pain may be necessary if the PCA does not adequately control the patient's pain. However, this should be done cautiously and typically under the guidance of a pain management team or physician. Breakthrough pain medication is usually reserved for instances where the PCA is not providing sufficient pain relief, and the patient's pain is assessed to be higher than what can be managed by the PCA alone.