Free textbooks of medical laboratory technology in pdf. Previously available only as part of the clinician s guide to laboratory medicine package, the new 3rd edition of the clinician s guide to laboratory medicine. Interpretation by students of clinical laboratory results. Teaching medical students basic principles of laboratory.
Full text full text is available as a scanned copy of the original print version. Clinical practice consultant, revision september 2011. Widmanns clinical interpretation of laboratory tests. There are numerous laboratory tests that can be done. Medical laboratory tests involve analyzing samples of blood, urine andor other body fluids or tissues in order to better understand a persons health state. Proposed solutions to improve the accuracy, efficiency, and safety of ordering clinical laboratory tests and interpreting the results include clinical decision support tools, trending of test results in electronic medical records emrs, 2 conditionspecific algorithms to help select tests, 3 professional practice guidelines, 4 and reflex. Lab values and their meanings forward the laboratory services are very pleased to see this report. Primary care physicians challenges in ordering clinical. Inside, find practical approaches to the interpretation of abnormal lab tests. Interpretation of clinical laboratory tests date qy p or too high due to improper timing acetaminophen toxicity false interpretation if drawn too soon or too late digoxin level 12 hours to distribute into tissues false high if drawn too soon not waiting long enough post fatty meal to perform bs, triglycerides, cholesterol levels.
If youre waiting for lab test results to come back or youre trying to figure out what they mean, the process and all those medical terms and numbers can be confusing. This book should be of help to nursing in understanding some of the more common tests which are conducted. This can be the same patients earlier results, if this is possible, or be done by comparing to data from a normal population. Recognize normal ranges for common laboratory values in adults. Medical care is often necessary for someone with electrolyte. A technician or your doctor analyzes the test samples to see if your results fall within the normal range. Understanding laboratory tests fact sheet national. Of the 61 respondents, 23% reported a lack of confidence in interpreting the results of complex tests. A practical guide to interpreting blood test results. It is converted to fibrin clot during blood coagulation.
We conducted a small survey to obtain some idea of how physicians do, in fact, interpret a laboratory result. With some laboratory tests, the results obtained for healthy people can vary somewhat from person to person. The site is produced by aacc, a global scientific and. Laboratory test result interpretation for primary care doctors in south africa. Because pathologists do not get paid for this activity and most do not have the content knowledge to be effective in advising fellow doctors about clinical laboratory test selection and result interpretation. Nurses should become familiar with tests that are frequently requested in. Laboratory test result interpretation for primary care.
It is based on underlying concepts that govern the proper use and interpretation. Knowing the different normal lab values is an important step in making an informed clinical decision as a nurse. In fact, the results obtained from a single person given the same test on different days can also vary. Diagnostic and laboratory tests are tools that provide invaluable insights and information about the patient. Laboratory tests check a sample of your blood, urine, or body tissues. Complying with documentation requirements for laboratory.
After consulting with clinical lab scientists, the task force was. Get a printable copy pdf file of the complete article. Complying with documentation requirements for laboratory services mln fact sheet page 2 of 4 icn 909221 august 2018 laboratory results attestation or signature log for illegible signatures medicare signature requirements unsigned physician orders or unsigned requisitions alone do not support physician intent to order. Lab values for this course are taken from the rush medical laboratory rush university. Test results can be used to aid the patient, physician, and caregiver in reaching decisions. Depending on the test and the methods used, testing can be performed at a centralized laboratory, the hospital bedside, the physicians office. Objective to determine the understanding of decimal numbers by medical laboratory scientists, doctors and nurses. List circumstances that may produce falsenegative or falsepositive laboratory results. Interpretation of laboratory results acute care testing. Clinical chemistry is the branch of laboratory medicine that focuses primarily on molecules. However, there is obviously still a lot to do regarding better reporting of data and information. When a diagnostic test is performed in the medical laboratory, the outcome of the test is a result.
When this clot is degraded by plasmin, degradation products are produced. The results of diagnostic test are often misinterpreted by physicians and nurses. Its a good idea to schedule a doctors appointment after undergoing lab work. At the end of this program, each participant will be able to. Theres always the fear of messing things up and not being able to meet the patients health needs. Decimal numbers and safe interpretation of clinical. Hypoglycemia, liver disease, adrenal insufficiency, excess insulin. The lpn lab values manual was first compiled in response to a lack of information in the form of. The interpretation of clinical laboratory test results michael schaer, dvm, diplomate acvim, acvecc university of florida, college of veterinary medicine with the advent of modern medical technology, the availability of hematological and serum biochemical data to the veterinary practitioner has become commonplace. Important to interpret for the patient and disease states involved, e. Methods a decimal comparison test determined the comprehension of decimals numbers.
Advising clinicians on laboratory test selection and. Academy of acute care physical therapy apta task force. This test is used for the detection of fibrinfibrinogen degradation products in patients suspected of having thrombotic disorders. Laboratory tests interpretation nurses learning network. Lab values for this course are taken from the rush medical laboratory rush university medical center, 2012. Patient education on blood, urine, and other lab tests. Additional questions sought the participants understanding of concentrations and reference ranges, and their preferences for the. Clinical laboratory test results are a very important parameter in diagnosis. The result may be a patient result or it may be a quality control qc result. How to read and understand medical laboratory results. Analytic precision in clinical chemistry and medical decisions. Interpretation by physicians of clinical laboratory results. Laboratory values and interpretation a nurses ultimate.
Clinical medical laboratories are an example of applied science, as opposed to research laboratories that focus on basic science, such as found in. The tests in a clinical chemistry laboratory measure concentrations of biologically important ions salts and minerals, small organic molecules and large macromolecules primarily proteins. Familiarizing and interpreting laboratory values for nurses dont always have to feel that way. Official revised 8172018 course syllabus hprs 1209 interpretation of laboratory results catalog description.
Physicians in specialties that order the tests are teaching medical students laboratory medicine and test use with minimal input from laboratory scientists who implement and maintain the quality control for those tests. Quality control in the medical laboratory is a statistical process used to monitor and evaluate the analytical process that produces patient results. The clinical interpretation of laboratory results is an integral part of laboratory services. That way, you can discuss any unusual results facetoface. Internal medicine, laboratory medicine comments off on oxford handbook of clinical and laboratory investigation oxford medical handbooks 4th edition april 2018 release dec 04 2018 with major advances in technology there are thousands of clinical and laboratory tests available, forming a key part of the diagnostic process in the highly. Tests for hbv and hcv are both available, but their interpretation can.
Interpreting chemistry and hematology for adult patients. Fibrinogen is a blood clotting factor produced by hepatocytes and megakaryocytes. The tests use a range because what is normal differs from person to person. Laboratory medicine is a distinct medical discipline and a tool for patient care that is used in all specialties. Getting familiar with and interpreting laboratory values can be intimidating, particularly to new nurses. See section 6 for more detail about specific analytes. Some lab tests provide precise information about specific health issues, whereas others. As emerging research regarding early mobilization and advancements in medical practice is evolving, the academy of acute care physical therapy american physical therapy association task force on lab values took on the mission of updating the laboratory values interpretation resource to better accommodate practitioners needs. In the latter case, to make use of the test result a reference area for the analysis in question must be. Interpret the clinical significance of abnormal laboratory values. Interpretation of a laboratory result requires that the result can be related to a relevant reference value.
In the laboratory a lot is done to assist in the interpretation of results, besides reference values, measurement error, flagged results and so on. Lab tests are used to help confirm a diagnosis, monitor an illness, and the patients response to treatment. An introduction to interpretation of commonly ordered laboratory results. A medical laboratory or clinical laboratory is a laboratory where clinical pathology tests are carried out on clinical specimens to obtain information about the health of a patient to aid in diagnosis, treatment, and prevention of disease. Values took on the mission of updating the laboratory values interpretation resource to. Course syllabus hprs 1209 interpretation of laboratory. Pdf laboratory test result interpretation for primary. Laboratory results provide objective data about patient health across the continuum of patient care. Methodswe asked 20 house officers, 20 fourthyear medical students and 20. Hematology archives medical laboratory scientist mls. Free textbooks of medical laboratory technology in pdf download by idowu olabode.
This course was not designed to be a lab manual that you carry in. Factors that can cause persontoperson variation in laboratory test results include a persons age, sex, race, medical history, and general health. Lab test are integral to patient care and depend on cooperation and support of ward staff for accurate and timely interpretation of the results. Reading this book will equip you with sound understanding and medical judgment that will surprise you. Medical laboratory scientist mls are professional covering all aspect of laboratory including chemical and clinical chemistry, blood banking and hematological parameters, immunologic and serological, cytopathology and histopathological, microbiology and bacteriology, biochemical testing, body fluids such as blood, urine, csf, stool, sputum, peritoneal, pericardial and. Interpretation of laboratory tests university of washington. Utilize clinical laboratory data to monitor various disease states. This course will take a closer look at these components. The most common tests include chemistry panels, hematology such as the complete blood count, and blood gases. Textbook of medical laboratory technology darshan p.
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