In case, you are suspected to have contracted cancer, your
doctor may suggest certain blood tests. These tests will verify and confirm the
inception of cancer. Besides, other specific lab tests help to steer the
diagnosis in the right direction. These include a urine test or biopsy of the
affected area.
Except for blood cancer, mere blood tests, by and large,
cannot fully reaffirm a malignant or a non-malignant condition. Yet, they offer
enough pointers to your doctor. This helps to comprehend the overall internal
body functioning.
Your doctor may recommend some cancer blood tests. This is
primarily to verify signs of cancer existence. But it does not imply that you
have been diagnosed with cancer. Show effort in understanding what your doctor’s
expectations are. Especially when your blood tests are done and reports are
delivered.
What does your doctor
try to put on alert?
Blood samples are collected and sent to the lab for analysis.
The tests screen potential indicators of cancer. The blood specimen would
usually display cancerous cells, proteins and other organisms. These are
generally created due to malignancy. The blood tests also furnish information
about the functioning of your vital organs. They also provide signals if any
organ is affected by cancer.
4 important blood tests performed to gauge the presence of
cancer include
1.
Complete blood count (CBC)
This is a widely prevalent form of a blood test. It measures
the count of different types of blood cells. Blood cancer is suspected if the
blood either has a hyper or hypo presence of a certain blood cell type. Even
the occurrence of abnormal cells often hints at blood cancer. A biopsy of bone
marrow can finally diagnose and confirm the formation of blood cancer.
2.
Blood protein testing
There is a special test called electrophoresis. It examines
the strength of several proteins in your bloodstream. The test comes to your
aid to unearth some abnormal immune system proteins. They are known as immunoglobulin’s.
These proteins show aggravated count in patients who develop multiple myeloma.
Here as well, your bone marrow biopsy confirms the suspected ailment.
3.
Tumor marker tests
These are chemicals produced by tumor cells. The secretions
can be detected in the blood flow.
But tumor markers are often generated by normal body cells.
The level of their presence may also be significantly high in non-malignant
conditions. This is one limitation of tumor marker tests to identify potential
cancer triggers. You should consider this test only under severely rare
situations. Then, a clear-cut diagnosis of cancer can be made effective.
But, the best possible way to make use of tumor markers has
not been established yet. Of course, the aim is to accurately diagnose cancer.
Furthermore, some tumor marker tests are found to be controversial. Even their
results prove to be inconclusive.
Common examples are tumor markers are:
o
prostate-specific
antigen (PSA) to detect prostate cancer
o
cancer
antigen 125 (CA 125)to detect ovarian cancer
o
calcitonin
to detect medullary thyroid cancer
o
alpha-fetoprotein
(AFP) to detectliver cancer
o
beta-human
chorionic gonadotropin (HCG) to detect testicular/ovarian cancer
4.
Circulating tumor cell tests
This is a recently formulated blood test. It recognizes cells
that have disengaged from the original cancer location. These cells break free
and keep flowing in the bloodstream. Only one specific circulating tumor cell
test has so far been approved. The approving authority, Food and Drug
Administration, asserts its usefulness to track patients with breast, prostate
or colorectal cancer.
What do the results
signify?
You must interpret the test results carefully. It is
imperative to know that various factors impact the outcomes. These include
changes in your body and your food intake.
In addition, remember that noncancerous conditions can
occasionally spark off abnormal test results. What's more, in other cases,
malignant growth may have occurred despite the fact that the blood test results
are normal.
Your doctor put your test results into a probe. The principal
aim is to check if your levels lie in a normal range. Your doctor may also compare
and analyze the current observation with your past test results.
The final course of
action
These atypical tests are done at specialized blood test center in Paschim
Vihar. They help doctors to gather some relevant clues for making
the diagnosis easier. But for a definitive diagnosis, it is the biopsy that
holds paramount importance.
Over time, the tumor marker levels are observed now and again.
Your doctor may plan a follow-up in a couple of months. Tumor markers most often
help once your diagnosis is perpetrated. Your doctor benefits immensely from
these subsequent tests. They make you doctor informed if your treatment is favorably
effective to your ailment.
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