Category: Lab testing

According to the American Academy of Family Physicians, many medications, including common over-the-counter drugs like aspirin, can influence the outcome of blood tests. Understanding how can aspirin affect blood tests is crucial for both patients and healthcare providers to ensure the most accurate interpretation of results.

While tramadol is commonly prescribed for pain, many patients wonder if **does tramadol affect a blood test**. Tramadol can be detected on specific drug screenings for a limited time and may influence certain routine lab parameters, particularly with long-term, high-dose use.

According to some manufacturers, unopened refrigerated hCG controls are stable until their listed expiration date, while opened controls often have a much shorter life span, sometimes just 31 days. Understanding precisely **how long are hCG controls good for** is critical for maintaining the accuracy and reliability of diagnostic testing.