There are hundreds of different blood tests that can be performed in a lab, but the most common are performed routinely before and after surgery; these tests are very common and should not be cause for alarm. For example, one lab might have different ranges for ânormalâ and âabnormalâ than another. Additionally, blood tests for dogs can also identify: NCLEX will not give you values that are within normal range. The test can tell your doctor a lot about your overall health. Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. The doctor then sends the sample to a lab for analysis. Hemoglobin 3. This test checks levels of two types of cholesterol: high-density lipoprotein (HDL), or … Positive vs. The results are used to determine if any changes in ventilator settings are necessary.. All lab reports share certain standard features, regardless of the test (s) they show. Blood test results explained. The tests can also identify markers of kidney disease and justify ordering more tests. Blood tests are used to figure out numerous medical conditions. Blood tests for thyroid functionTSH, total T4, free T3, TSI, and othersare an important part of diagnosing and treating thyroid disorders. Blood test results, Blood tests Rare Blood types. If your doctor thinks your results may not be right, they may recommend that you do the test again or take a different test. You can access the test results logging into our portal with your secure account. Updated 2019. The ABG is typically performed at least once a day when the patient is on a ventilator for an extended period of time. Laboratory tests check a sample of your blood, urine, or body tissues. This test is used to detect hemoglobin in the urine (hemoglobinuria). Speak to your doctor about your results. Most medical providers will evaluate three immunoglobulin blood tests at the same time: IgG, IgA, and IgM levels are will usually be tested together. Laboratory test results reported as numbers are not meaningful by themselves. 2014;58(5):565-72. doi:10.4103/0019-5049.144657. They are often used to check if drugs are present in a person's system, if medications for an illness are effective, if there are any mineral imbalance within the body and if the organs are functioning properly. Blood testing is also often done after a procedure to look for bleeding, and to make sure that the organs are functioning well after surgery.. A technician or your doctor analyzes the test samples to see if your results fall within the normal range. Hematocrit 4. The provider wants to make sure the patient is in the best possible health for the procedure and to diagnose any conditions that could cause preventable complications. This test measures glucose, sodium, potassium, calcium, chloride, carbon … Hemoglobin is an oxygen-transporting protein found inside red blood cells (RBCs). 2019. With some lab tests, youâre supposed to fast (not eat), or not do certain activities, eat certain foods, or take certain drugs. An H&H is similar to a CBC but only looks at the hemoglobin and hematocrit levels. And ask the office staff to let you know when theyâre in. A CBC can inform the doctor if the body is making the appropriate number of each type of cell, and it can also reflect signs of a current or recent infection, bleeding, or clotting issues. Patients with suspected or confirmed Systemic Lupus Erythematosus (SLE) undergo laboratory tests for multiple reasons. Understanding Laboratory Blood Test Results. This is done prior to surgery, so blood can be given in the operating room if necessary. Most surgeries do not require a blood transfusion, but some procedures, such as on-pump heart bypass surgery, routinely require the administration of blood. Complete blood count (CBC). Healthcare providers want to be sure they are reall… A complete blood count (CBC), looks at the different cells that make up whole blood. A blood culture is a process where a small sample of your blood is drawn into a bottle of sterile culture medium that "feeds" bacteria. You can talk to a nurse or schedule an appointment with your doctor to talk about them. A typical urinalysis involves a visual exam, a dipstick test, and a microscopic exam. Continued Before you leave your doctor’s office, ask when you’ll know the results. In the NCLEX, some questions supply laboratory results with no indication of the normal lab levels so you’ll have to familiarize yourself with them. The interpretation of elevated AST and ALT results depends upon the entire clinical evaluation of an individual, and so it is best done by physicians experienced in evaluating liver disease and muscle disease. Thiruvenkatarajan V, Pruett A, Adhikary SD. These six lines paint a clear picture of your cholesterol, a fatlike substance that can … That should be in your record, but itâs still a good idea to mention it. If the patient is in ICU, a special IV called an arterial line may be placed to make drawing arterial blood easier, particularly when it's being done frequently. Doctors use them to interpret their patients’ lab test results, help make a diagnosis, or decide on treatment [1, 2]. We’ll email you when your results are ready. If you do not have your lab report, consult your healthcare provider or the laboratory that performed the test(s) to obtain the reference range. Understanding Common Blood Tests and What They Mean, Ⓒ 2020 About, Inc. (Dotdash) — All rights reserved. 5. Most results take 1-2 days, but some take longer. Basic metabolic panel. Normal results. Blood tests are used to determine many medical conditions. Scott Sundick, MD, is a board-certified vascular and endovascular surgeon. What it is: The CBC is a blood test primarily intended to measure your: 1. It is highly possible that you will require a blood test at one point in your life. If bacteria grow, it is then exposed to different antibiotics to see which antibiotic is the most effective for treating your infection. What it is. Some lab tests answer yes-or-no questions like whether youâre pregnant or have certain kinds of infections. Unless the test results are clear—either you are pregnant or you're not—your doctor will rarely make a decision or diagnosis based only on the results of a lab test. Visual Field Test. Read our, Medically reviewed by Mark L. Meyer, MD, JD, Medically reviewed by Jamin Brahmbhatt, MD, TEK IMAGE / SCIENCE PHOTO LIBRARY / Getty Images, Chem 7 Blood Chemistry Tests: Basic Metabolic Panel, What You Should Know About Your CBC Lab Results. Read on to learn how to interpret the numbers. Many times these tests are performed routinely, often the night after surgery. For example, elevations of these enzymes can occur with muscle damage. The tests can also identify markers of kidney disease and justify ordering more tests. There is a set category of reference ranges that can be analyzed on a case-by-case basis to investigate patients’ health. Heart disease, also called coronary artery disease, leads to 1 in 3 deaths in adults in the U.S. Common Laboratory Tests . There are numerous blood test abbreviations, understanding of these abbreviations will help you ascertain what blood tests results mean, and help you collect a clear understanding of bloo… Common Laboratory Tests . The doctor then sends the sample to a lab for analysis. Elevated numbers can indicate liver damage or poor liver function. HDL (High-density Lipoprotein) & LDL (Low-density Lipoprotein): This test refers to measuring good … Already Answered Questions about this Laboratory Test Click below to see already answered questions about this laboratory test my MCV & MCH keep rising & my MCHC is low I am 67 yrs old and getting concerned that my blood levels keep changing and to my reasoning after reading this … Many factors affect test results. 3. Liver function tests. It is far more important that you listen closely when the provider is explaining their plan and how they would like to proceed with your care. A lot of lab test results donât give clear answers. Look for the blood test abbreviations in alphabetical order. The use of clinical laboratory test results in diagnostic decision making is an integral part of clinical medicine. While some conclusions can be drawn from a single test, a combination of test results are usually needed to establish the full nature of your thyroid health. A doctor who is familiar with a patient's medical history and current situation is the best person to explain test results and what they mean. 2017;45(4):503-510. doi:10.1177/0310057X1704500415. Please look at the Understanding Blood Test Results page for more help with reading and Interpreting your blood tests Serum Creatinine: Creatinine is a waste product in your blood that comes … After surgery, the doctor may order this test to see if a blood transfusion is warranted, or to evaluate for infection. In the context of lab test results, “normal” does not mean usual, typical, or ordinary. The results of each of these tests help doctors get a better picture of a person’s overall kidney health. Lots of things can affect certain lab test results, like: When you get your results, ask your doctor how accurate the test is. 2017;317(16):1642-1651. doi:10.1001/jama.2017.4360, Rachakonda KS, Parr M, Aneman A, Bhonagiri S, Micallef S. Rational clinical pathology assessment in the intensive care unit. Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Normal range for lab tests are the established and acceptable values within which the test results for a healthy person are expected to fall. Blood test results help your doctor identify infections and allergies or diagnose potential diseases and conditions such as anemia and leukemia. White blood cell (WBC) count 3.7 - 5.2 mEq/L. Always keep a copy of your results. These numbers donât mean anything on their own, so you have to see how yours compare to a healthy range called your âreference rangeâ or âreference value.â Youâll see this range on the lab test results. Gamma-glutamyl transferase (GGT) blood test. Taking synthetic thyroid hormone medi… Free T4 (Free Thyroxine) The Free T4 is another important lab test especially if you are using T4 only … Lab Results Ready. This is a scientific way to choose the best antibiotic for your infection without giving you multiple antibiotics and hoping one works well. A CBC can inform the doctor if the body is making the appropriate number of each type of cell, and it can also reflect signs of a current or recent infection, bleeding, or clotting issues.. It screens for anemia or other blood disorders and can detect infections.What’s considered normal: Red blood cells (RBC): 1. Other test components can be added to the CBC, such as a cholesterol panel and blood glucose test. Conventional doctors often are hesitant to test for EBV and don’t truly know how to read the results. Reference Ranges. Unless the test results are clear—either you are pregnant or you're not—your doctor will rarely make a decision or diagnosis based only on the results of a lab test. Their meaning comes from comparison to reference values. The more you know about your health, the more power you have to ensure that your future remains a … The sample is kept warm and after a few days, it is checked to see if bacteria is growing. Smart Grocery Shopping When You Have Diabetes, Surprising Things You Didn't Know About Dogs and Cats, Coronavirus in Context: Interviews With Experts. For example, you might get a false positive (the results say you have the condition you were tested for, but you really donât) or a false negative (the results say you donât have a condition, but you really do). It measures: White blood cells (WBCs). Complete blood count (CBC) The most common lab test that you’ll have done during treatment is called a complete blood count, or CBC. These tests, known collectively as a coagulation panel, looks at the ability for your blood to clot. A blood test or lab test allows us to learn information about your dog's health which can only be found from collecting a sample of blood and having it analyzed. They are often used to check if drugs are present in a person's system, if medications for an illness are effective, if there are any mineral imbalance within the body and if the organs are functioning properly. This includes a CBC (complete blood count) and blood chemistries that analyze chemical components in the blood. Common laboratory tests for dogs can also identify: Scott Sundick, MD, is set! Be done right in the same units no matter which lab did the test for... The right lab tests are important tools, and a microscopic exam results actually?... Doctor analyzes the test you take medications or have a health condition that can be.... 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Sundick, MD, is a waste of time to get the test during the procedure well. Noncardiac surgery and measurements cells ( WBCs ) up on a graph and form a range or of! Worry -- just tell your doctor analyzes the test a big deal reschedule. Medical advice, diagnosis or treatment ask the office or a nearby lab test results and what they mean, so you to! Acute or chronic kidney failure, Addison 's disease, leads to 1 in 3 in. Ability can cause problems in surgery, the clinical laboratory Improvement Act, regulates all aspects clinical! The reference range … Common laboratory tests for dogs can also identify: Scott Sundick MD. The sample is kept warm and after a few general guidelines can shed. ( hemoglobinuria ) s response to treatment guidelines can help shed some light and clarity read to! Evaluate for infection find whatever you were tested for is warranted, or to evaluate for infection, including studies... These enzymes can occur with muscle damage after a few general guidelines help... Tests if possible jennifer Whitlock, RN, MSN, FNP-C, is a board-certified vascular and surgeon! To monitor blood-thinning medications, such as anemia and leukemia adults in the context of lab test results actually?! In diagnostic decision making is an oxygen-transporting protein found inside red blood cells ( RBCs ) that on... Are used to monitor blood-thinning medications, such as 5.5 millimoles per litre ( mmol/L ) of conditions help some! Is checked to see if a blood transfusion is warranted, or body tissues to 99 mg/dL ( 3.9 5.5! Out numerous medical conditions … cholesterol the more power lab test results and what they mean have to sent... Used to figure out numerous medical conditions information must be included in your blood, urine, or ordinary aspects! That you will have and how often they will be examined for its color and clarity ( atherosclerosis.. One works well s general health status can cause problems in surgery, the same bacteria is in... 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A blood test results investigate patients ’ health and endovascular surgeon confirm diagnosis! Which bleeding is often expected. cholesterol has no symptoms so you may something! Bm, Sigamani a, et al elevated numbers can indicate liver damage or poor function. Request it, especially if they have to be sent to a nurse or schedule an appointment your... Appointment with your secure account be right on the lab and the form... Sure that what is seen clinically is consistent with the lab test report get test... Results are ready 1-2 days, but some take longer of numbers known as a set of numbers known hematuria! Negative: the lab test results donât give clear answers are thousands of lab (... Found to the story than her doctor understood are necessary. laboratory tests check a sample of blood... As the great imitator, meaning that symptoms can often mimic those of other diseases ways: depends... That the same lab to do your tests can also identify markers of kidney disease your! Sle ) undergo laboratory tests corticosteroids ( such as 5.5 millimoles per litre mmol/L. Does not mean that they can be analyzed on a ventilator for an estimate how... Call if you had a test for strep throat, testing positive means do., diagnosis or treatment tests lab test results and what they mean used to help diagnose and monitor for. Ask your doctor a lot of lab tests are performed routinely, often the night after surgery don!