Final answer:
The nurse should include the instruction to 'Change position slowly' in the client's teaching after a PTCA.
Step-by-step explanation:
The nurse should include the instruction to 'Change position slowly' in the client's teaching.
After a percutaneous transluminal coronary angioplasty (PTCA), the client may experience dizziness or lightheadedness, which can be a side effect of the calcium channel blocking agent.
By changing positions slowly from lying down to sitting up or from sitting to standing, the client can minimize the risk of falls or other injuries caused by dizziness or lightheadedness.