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The Importance of Diagnostic Testing

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Everyone falls ill at some time or other. Even the most health-conscious of us can catch something or develop some kind of chronic disease. The good news is that the medical field is well situated to catch these anomalies and get patients the help they need as quickly as possible. The most important thing you can do as a patient is to have routine physicals and undergo diagnostic tests as quickly as possible after you or your doctor notice something unusual. You might initially feel better not knowing, but understanding what you are dealing with early is crucial to positive outcomes. 

Why exactly are diagnostic tests essential when discovering early symptoms of underlying illness? This article looks at diagnostic testing and why it matters. 

Is diagnostic testing really that important? 

Yes, diagnostic testing can be crucial to your health. Some health conditions are known to be “silent,” which means that they don’t cause symptoms that interfere with daily life until they are extremely advanced, at which point treatment can be complex. Diagnostic testing steps in before that happens. The reason you are recommended to have various screenings throughout your life is to ensure that you aren’t developing a disease or other ailment that has minimal or no symptoms. This allows doctors to make an early diagnosis and administer treatment when it is most effective. 

Diagnostic testing is truly a modern medical marvel. It is only in relatively recent history that we have been able to effectively screen for health problems before they fully develop and start interfering with daily life. Diagnostic testing is often a painless way to catch health issues before they become health catastrophes. They can also help doctors keep track of your health even when no illness is present. From monitoring hormones and blood pressure to searching for evidence of cancer, diagnostic testing can be a lifesaver. 

Why is diagnostic testing so important? 

We’ve given a broad overview of the reasons why diagnostic testing is important, but we haven’t looked at specific areas where it can be the difference between life and death. In this section, we examine some key purposes diagnostic testing serves and how it can help keep patients as healthy and happy as possible. 


The first reason diagnostic testing matters is that it allows professionals to explore someone’s symptoms and find a definitive cause behind them. This, in turn, allows patients to find the right care providers to help monitor their illnesses or conditions so that any necessary treatment can be completed. Consider diagnosis to be the first in a number of steps, with the end goal being to protect your health and return you to your normal life. 

After an initial diagnosis has been made, doctors will often order more testing to determine if there is some kind of underlying health issue that might be exacerbated by the illness (or which might be exacerbating the illness itself). For some problems, it is crucial to understand not only the ailment’s nature and development but also how the patient is exhibiting symptoms. Oftentimes, patients exhibit subtle symptoms that are indicative of the health issue they are facing. Excessive thirst, for example, is something many people see as “normal” when, in reality, it might be a warning sign that something more is happening. 


In addition to the above, diagnostic tests also help physicians decide if the medication or treatment they prescribe is working. They do this by painting the “big picture” of the ailment for the doctor. Through effective diagnostic testing, doctors can determine exactly where the ailment is, how it is impacting the body part/area in question, and how quickly it is developing. Comparing this information to diagnostics taken after treatment has been implemented allows physicians to measure any changes against the “baseline.”

Note that while this article uses the development of a serious or chronic ailment to illustrate the importance of diagnostic testing, that is not the only area where it is useful. In fact, diagnostic testing can be used to monitor all sorts of things. Someone with diabetes, for example, might use tests to keep track of their blood sugar and vitals to ensure the issue is under control. Others use diagnostic testing to check hormone levels when they are trying to have a baby. There are a myriad of uses for diagnostic testing in both your everyday life and in health emergencies. 


Screening is a precursor to diagnosis. In the United States, patients are recommended to receive screening for common health issues, typically at least once a year. Women often undergo screening to ensure they are not developing cervical cancer, for example, and most patients undergo blood pressure screening to protect against future heart problems. 

You might have already guessed it, but screening lays the groundwork for accurate diagnosis by recording potential health issues before they become too serious to treat. These diagnostic tests alone don’t diagnose patients with something, in other words, but rather capture information that can be used by doctors to make a diagnosis. 

Are you interested in learning how to administer diagnostic testing?

Because it can be so essential to your health and happiness, it is imperative to have well-qualified professionals in charge of administering diagnostic testing. There are a few different ways you can become someone’s hero, by catching health problems before they negatively impact a life. One of the easiest is to progress down the nursing career path. This allows you to learn about diagnostic testing, the things you should look out for while running tests, and what to do if the test finds something dangerous. The programs offered by Rockhurst University are renowned for educating successful and effective medical professionals. Rockhurst offers online, fast-track courses that give you the flexibility required to balance study and other commitments. 


By furthering your nursing education, you can learn to implement the myriad benefits of diagnostic testing. Don’t hesitate to look into nursing if you are interested in helping the people around you stay healthy and happy. 

Featured Photo by National Cancer Institute on Unsplash