what if anything affects the creatinine level in a drug/alcohol urine test

Several factors can impact the creatinine levels in your system. These include medical conditions such as kidney disease, urinary tract obstructions, or dehydration. Certain medications, muscle mass, and even your diet can also affect creatinine levels. It's important to inform your doctor or the lab technician about any medications or supplements you're taking as they can interfere with the test results.

Yes, that's correct. Creatinine is a waste product produced by your muscles during normal activity. Therefore, people with larger muscle mass typically have higher levels of creatinine. However, excessive exercise can temporarily increase creatinine levels as well.

Your diet can indeed influence creatinine levels in your urine. A high protein diet, for instance, can increase creatinine levels. Furthermore, consuming large quantities of meat could also lead to high creatinine levels as your body breaks down the protein in meat during digestion.

Maintaining a healthy lifestyle can help. This means staying hydrated, eating a balanced diet, refraining from excessive exercise before your test, and avoiding medications or supplements that can interfere with creatinine levels. Remember, it’s always best to consult a healthcare provider when preparing for such tests.