Blood Tests2025-01-29T22:31:14+00:00

Colorectal Cancer Blood Tests:
Ventajas e inconvenientes

Scientists are working on making innovative tests for colorectal cancer screening, so more people can get screened.

Colorectal Cancer Blood Tests: Pros and Cons

Scientists are working on making innovative tests for colorectal cancer screening, so more people can get screened.

Colonoscopy and stool-based tests are two options for colorectal cancer screening, but blood tests present an emerging technology. Markers in the blood can indicate the presence of colorectal cancer and, occasionally, precancerous polyps. Colorectal cancer screening blood tests are now an option for some patients.

New tests are getting approved by the Food and Drug Administration (FDA) and are becoming easier for patients to access. Here is what you need to know if you are questioning if this type of screening option is a good fit for you.

Colonoscopy and stool-based tests are two options for colorectal cancer screening, but blood tests present an emerging technology. Markers in the blood can indicate the presence of colorectal cancer and, occasionally, precancerous polyps. Colorectal cancer screening blood tests are now an option for some patients.

New tests are getting approved by the Food and Drug Administration (FDA) and are becoming easier for patients to access. Here is what you need to know if you are questioning if this type of screening option is a good fit for you.

Ventajas e inconvenientes

When thinking about getting a colorectal cancer blood test, it’s important to weigh the benefits and drawbacks.

Pros

Here are some pros to screening for blood based tests for colorectal cancer screening:

Alta sensibilidad2024-12-12T17:24:50+00:00

These tests are highly effective at detecting colorectal cancer, especially late-stage colorectal cancer. They have similar rates to other non-invasive tests for colorectal cancer screening. These tests have a high percentage of correctly identifying those who do not have colorectal cancer (Grady, 2019).

Cómodo2024-12-12T17:24:44+00:00

No requiere baja laboral ni anestesia, por lo que es una opción sin complicaciones. Tampoco hay que hacer preparativos ni cambios en la dieta.

Sin manipulación de heces2024-12-12T17:24:37+00:00

A diferencia de otras pruebas no invasivas, no es necesario manipular ni recoger muestras de heces.

Extracción de sangre simple2024-12-12T17:24:14+00:00

La prueba requiere una muestra de sangre rutinaria.

Contras

Here are some cons to a blood test for colon cancer:

Insurance Coverage2024-12-12T20:34:15+00:00

Since blood tests for colorectal cancer are not yet universally accepted or included in screening guidelines, insurance companies may not cover the costs (American Cancer Society, 2023).

Necesidad de pruebas frecuentes2024-12-12T20:34:15+00:00

Tests will need to be repeated every 1-3 years to maintain their effectiveness.

Se requiere colonoscopia de seguimiento2025-01-29T22:28:36+00:00

Like a stool test, if you get a positive result from the blood test, a follow-up colonoscopy is necessary.

Capacidad preventiva limitada2025-01-11T03:43:34+00:00

Blood tests are not as effective at identifying pre-cancerous polyps (which are crucial for prevention) vs. many of the stool-based tests like FIT or mt-sDNA. In addition, colonoscopy remains the only testing option that can identify and remove pre-cancerous polyps in one setting. (Ladabaum, 2018).

Ventajas e inconvenientes

When thinking about getting a colorectal cancer blood test, it’s important to weigh the benefits and drawbacks.

Pros

Here are some pros to blood based tests for colorectal cancer screening:

Alta sensibilidad2024-12-12T17:24:50+00:00

These tests are highly effective at detecting colorectal cancer, especially late-stage colorectal cancer. They have similar rates to other non-invasive tests for colorectal cancer screening. These tests have a high percentage of correctly identifying those who do not have colorectal cancer (Grady, 2019).

Cómodo2024-12-12T17:24:44+00:00

No requiere baja laboral ni anestesia, por lo que es una opción sin complicaciones. Tampoco hay que hacer preparativos ni cambios en la dieta.

Sin manipulación de heces2024-12-12T17:24:37+00:00

A diferencia de otras pruebas no invasivas, no es necesario manipular ni recoger muestras de heces.

Extracción de sangre simple2024-12-12T17:24:14+00:00

La prueba requiere una muestra de sangre rutinaria.

Contras

Here are some cons to a blood test for colon cancer:

Insurance Coverage2024-12-12T20:34:15+00:00

Since blood tests for colorectal cancer are not yet universally accepted or included in screening guidelines, insurance companies may not cover the costs (American Cancer Society, 2023).

Necesidad de pruebas frecuentes2024-12-12T20:34:15+00:00

Tests will need to be repeated every 1-3 years to maintain their effectiveness.

Se requiere colonoscopia de seguimiento2025-01-29T22:28:36+00:00

Like a stool test, if you get a positive result from the blood test, a follow-up colonoscopy is necessary.

Capacidad preventiva limitada2025-01-11T03:43:34+00:00

Blood tests are not as effective at identifying pre-cancerous polyps (which are crucial for prevention) vs. many of the stool-based tests like FIT or mt-sDNA. In addition, colonoscopy remains the only testing option that can identify and remove pre-cancerous polyps in one setting. (Ladabaum, 2018).

Should You Consider a Blood Test for Colorectal Cancer?

Discuss your screening options with your medical provider. Ask if a blood test is suitable for you. Keep in mind that a blood test will not be recommended if:

  • You are at an increased or high risk for colorectal cancer.
  • You or a first-degree biological family member have had previous colorectal cancer(s) or advanced adenomas/precancerous polyps.
  • You have signs or symptoms.

Every screening test has its pros and cons. Consider all your options and choose the one that best fits your health history and your needs.

What should I do if I want to try this option?

Blood tests for colorectal cancer screening, just like colonoscopy and stool-based tests, should be ordered by a healthcare provider. To find out if blood tests are a good option for you, talk to your primary care physician, gastroenterologist, or OBGYN.

Should You Consider a Blood Test for Colorectal Cancer?

Discuss your screening options with your medical provider. Ask if a blood test is suitable for you. Keep in mind that a blood test will not be recommended if:

  • You are at an increased or high risk for colorectal cancer.
  • You or a first-degree biological family member have had previous colorectal cancer(s) or advanced adenomas/precancerous polyps.
  • You have signs or symptoms.

Every screening test has its pros and cons. Consider all your options and choose the one that best fits your health history and your needs.

What should I do if I want to try this option?

Blood tests for colorectal cancer screening, just like colonoscopy and stool-based tests, should be ordered by a healthcare provider. To find out if blood tests are a good option for you, talk to your primary care physician, gastroenterologist, or OBGYN.

Read all your screening options, and take our screening quiz to learn your risk.

Read all your screening options, and take our screening quiz to learn your risk.

Will my insurance pay for this test?

If you and your doctor think a blood test is a good option for you, check with your insurance to see if it’s covered. If your insurance does not pay, you might have to pay for the blood test. Messaging your doctor online or contacting the office by phone can help you avoid extra appointments. Call and ask if a blood test could be an option for you.

Currently, most insurance plans do pay for colorectal cancer screening options which are in USPSTF guidelines. (At this time, blood testing is not part of the USPSTF guidelines).

Some companies that make blood tests provide programs to help patients pay for the tests like Guardant Access.

Will my insurance pay for this test?

If you and your doctor think a blood test is a good option for you, check with your insurance to see if it’s covered. If your insurance does not pay, you might have to pay for the blood test. Messaging your doctor online or contacting the office by phone can help you avoid extra appointments. Call and ask if a blood test could be an option for you.

Currently, most insurance plans do pay for colorectal cancer screening options which are in USPSTF guidelines. (At this time, blood testing is not part of the USPSTF guidelines).

Some companies that make blood tests provide programs to help patients pay for the tests like Guardant Access.