Final answer:
The 62-year-old male with acute, worsening low back pain after lifting should initially employ conservative treatment methods and seek medical evaluation to rule out serious conditions such as a herniated disc.
Step-by-step explanation:
The most appropriate management for a 62-year-old male presenting with severe low back pain that began after lifting heavy objects, in this case, concrete blocks, would likely include initial conservative measures such as rest, ice or heat application, over-the-counter pain relievers, and possibly muscle relaxants. Due to the acute onset and rapid progression of pain, it would also be wise to seek medical evaluation to rule out serious conditions such as a herniated disc or other spinal injuries. The medical evaluation may include a physical examination, imaging studies like an X-ray or MRI, and, depending on the findings, a referral to a specialist such as an orthopedist or a neurologist for further management.