URINALYSIS AS THE MOST IMPORTANT LABORATORY TEST:
When most people visit a medical laboratory because they are having what we call: "general malaise"( which is a general feeling of ill health), they usually insist that what they want to do is malaria and typhoid fever test.
Even health care providers like nurses who operate a chemist or maternity are guilty of this same malaria and typhoid test only, request for their patient.
What people fail to understand is that urinalysis which is a simple, rapid test is more important to be done for a sick patient than malaria and typhoid fever test. Why?
Urinalysis is a simple chemistry test that tells you the condition of the entire body system in one fell swoop.
If a patient has malaria which usually causes the breakdown of red blood cells by the spleen, the end products of red blood cells breakdown which include urobilinogen and bilirubin will appear in the urinalysis test result. Hence, a knowledgeable and experienced health professional will know if you have malaria by simply looking at your urinalysis result.
Also, if a patient has diabetes mellitus (excess glucose in the blood) which has not been previously diagnosed, urinalysis will reveal by way of glucose scoring 2+ or 3+ in the person's urinalysis result that the patient has come down with diabetes mellitus.
If a person has kidney disease or failure, urinalysis will help to detect the situation by the presence of protein in the person's urinalysis result which may score 2+ or 3+.
If a person has any form of hepatitis, the presence of bilirubin in the urinalysis result which may score 2+ or 3+ will help to reveal that.
If a person has serious bacteria infection, Nitrite which is the end product of breakdown of nitrate by bacteria in the body system will test Positive in the urinalysis result. A positive Nitrite result in urinalysis test instantly raises the suspicion of a knowledgeable and competent health professional about a likely severe bacteria infection in the patient.
Moreover, urinalysis test is never complete without viewing of the patient's urine deposits under the microscope. Hence, if a person who has treated malaria very well but still having fever is actually down with acute bacteria infection which may not be of salmonella (typhoid fever) origin, the presence of many pus cells(dead white blood cells) in the patient's urine microscopy will help to reveal that why the patient is having persistent fever is due to acute bacteria infection. This will lead to either aggressive blind treatment with broad spectrum antibiotics or request for urine culture to determine the actual antibiotics for wiping off the acute bacteria infection.
Can you now see why urinalysis is the most important lab test? It's about the cheapest lab test yet the most important because it will reveal your entire health status through that singular test. That explains why people on free medical mission usually do only urinalysis for the community people in addition to checking of blood pressure and blood glucose before they give out drugs for free to the community members during their free medical outreach.
There are other benefits of urinalysis test like when blood appears in the urinalysis result of an old man or an old woman. For the old man, it may be indicative of infection or prostate disease. For the old woman, it may be indicative of infection or a developing disease in her reproductive system.
Hence, urinalysis is an all encompassing test and without argument is the most important test you can do in a medical laboratory.
So, when next you go to a medical laboratory to run tests for yourself or for your patient, remember to mention urinalysis test as the number one test you want to do
My advice to patients usually is: if you don't have money to run other tests, please pay for only urinalysis test. It's the most important test. It's the test that X-rays your entire body system at once. And it's a life-saving test
Izu Godson Udemezue is a Medical Laboratory Scientist and a senior partner at Composite Health Diagnostic Laboratory (CHDL) Uruagu -Oraifite.