Final answer:
For a 40-year-old male patient admitted for abdominal surgery, the most suitable catheter sizes would be either a 14 French with a 5-mL balloon or a 16 French with a 5-mL balloon. Larger French sizes are common for adult males, and the 5-mL balloon is typically adequate.
Step-by-step explanation:
The appropriate size catheter for a 40-year-old male patient with no history of prostate problems scheduled for abdominal surgery would typically be a 14 French, 5-mL balloon or a 16 French, 5-mL balloon. The 'French' unit measures the diameter of the catheter, with larger numbers indicating larger diameters. For adult men, the common sizes range from 14 to 16 French. A 3-mL balloon might not be sufficient for an adult male and a 30-mL balloon is usually reserved for post-surgical bladder irrigation or when large clots are anticipated. Therefore, options B and C are the most appropriate choices, with option C being more commonly used in many clinical settings.