Tumor Marker Screening
Health Checkups
≈ ¥200-800
(≈ $30-115)
2 hr
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Description
Estimated cost for Tumor Marker Screening at general public hospitals in China is about ¥140-640, and at Grade 3A hospitals about ¥200-800, varying by hospital tier and region.
Main Uses
Tumor marker screening is primarily used for: 1. Monitoring response to cancer treatment, 2. Detecting recurrence of cancer, 3. Assessing the effectiveness of ongoing therapy, 4. Aiding in the diagnosis of certain cancers, especially when combined with other diagnostic methods like imaging and biopsy, 5. Prognostic evaluation in some types of cancer.
Normal Range
The normal range for tumor markers varies depending on the specific marker. For example, CA 125 (cancer antigen 125) is typically less than 35 U/mL, CEA (carcinoembryonic antigen) is usually less than 5 ng/mL, and PSA (prostate-specific antigen) for men under 50 is generally less than 2.5 ng/mL, with slight variations based on age and other factors.
Low Values - Possible Causes
Low values of tumor markers are generally not a concern and do not typically indicate any health issues. However, in some rare cases, low levels might be due to: 1. Laboratory error or variation, 2. Recent treatment (e.g., chemotherapy, radiation therapy), 3. Early stage of cancer where the marker is not yet elevated, 4. Non-cancerous conditions that do not affect the marker, 5. Individual biological variability.
High Values - Possible Causes
High values of tumor markers can be caused by: 1. Presence of cancer (e.g., ovarian, colorectal, prostate, etc.), 2. Benign conditions (e.g., endometriosis, liver disease, benign prostatic hyperplasia), 3. Inflammation or infection, 4. Smoking, 5. Certain medications or treatments.