Final answer:
The appropriate step when applying a condom catheter to an uncircumcised patient is to pull back the foreskin. The catheter should be secure but not tight and fit comfortably without using oil-based lubricants on latex materials.
Step-by-step explanation:
When applying a condom catheter for an older adult patient who is uncircumcised, it is appropriate to pull back the foreskin before applying the catheter. This step is crucial because the foreskin can interfere with the application and may cause discomfort or injury if not retracted. It is important not to apply adhesive directly to the glans, as the skin there is sensitive and can be damaged by adhesives. The catheter should be secured, but not so tightly that it restricts blood flow or causes discomfort. As for the size of the catheter, it should fit well but not be so large as to cause discomfort or be too loose, which could lead to leaks or displacement.
Remember that appropriate care must be taken when handling the condom catheter and that oil-based lubricants should not be used with latex catheters due to the risk of degradation of the material.