Blood Tests for Cancer Diagnosis: Myths vs. Facts
At Elevétion Health, we empower you with accurate, up-to-date health information. Blood tests are crucial for detecting, diagnosing, and monitoring certain cancers. Let’s separate the myths from the facts.
Can Blood Tests Detect Cancer?
Myth: A routine blood test will show if you have cancer.
Fact: Routine blood tests, like full blood counts and metabolic panels, can indicate potential cancer, but normal results don’t rule it out. Not all cancers show up in routine blood work.
If your results are abnormal, your doctor considers your age, family history, and symptoms before deciding on next steps. Further tests might be needed to rule out cancer and other diseases.
What Cancers Are Detected by Blood Tests?
Myth: A blood test can diagnose cancer on its own.
Fact: Blood tests detect hormonal and metabolic changes known as tumor markers, but they’re not enough for a diagnosis. They must be combined with other tests for a comprehensive evaluation.
Blood tests play a role in diagnosing several common cancers, including:
- Blood Cancer: Diagnoses types like leukemia, Hodgkin’s lymphoma, Non-Hodgkin’s lymphoma, and myeloma. Further tests like bone marrow biopsy, scans, and genetic tests often follow.
- Ovarian Cancer: A CA-125 blood test detects tumor markers. Additional scans or biopsies may be necessary if results are concerning.
- Prostate Cancer: The PSA test measures the risk of prostate cancer. Elevated PSA levels may lead to an MRI scan or biopsy for further investigation.
If My Blood Tests Are Normal, Can I Still Have Cancer?
Myth: Blood tests can completely rule out cancer.
Fact: Normal results are reassuring but not 100% accurate. If your symptoms persist, worsen, or you have concerns, follow up with your doctor or seek a second opinion.
When Should I Get Tested for Cancer?
There are two types of cancer testing:
- Screening: Testing for signs of cancer without symptoms to catch it early. Regular screenings like mammograms, colonoscopies, and PSA tests are based on age and risk factors.
- Diagnostic Testing: If you have symptoms, a specialist may perform diagnostic tests to determine the cause. Depending on your age, family history, and risk factors, you may be screened for other types of cancer as well.
Warning Signs of Cancer
Cancer causes various symptoms, many of which also indicate less serious conditions. Speak to a doctor if you experience any of these unexplained symptoms:
- Lumps, rashes, or bruising
- Pain
- Indigestion, nausea, or vomiting blood
- Changes in bodily functions (like bowel or bladder habits)
- Frequent or uncontrolled coughing
- Shortness of breath or chest pain
- Tiredness
- Weight loss
- Loss of appetite
At Elevétion Health, we offer comprehensive diagnostic services to address your symptoms and medical history.
Conclusion
Understanding the role of blood tests in cancer diagnosis demystifies the process and ensures you get accurate information for your health decisions. If you’re worried about symptoms or your cancer risk, contact Elevétion Health for expert guidance and support. For more information and to schedule a consultation, visit Elevétion Health.
