Tests are grouped according to specimen and function test type e. Results of clinical pathologic tests should always be interpreted with respect to what is known about the patient signalment, history, clinical signs, results of other diagnostic testing and should not be interpreted in isolation. Lab tests are typically used during routine checkups to identify possible changes in a. You are considering referring each patient to the cardiology service for further testing. Professional medical textbooks for the medical, dental, veterinary, nursing, and other health professional fields. Mastering lab interpretation video and book package pesi. Its essential that all health care professionals understand why specific tests have been ordered and what the results might implicate. Laboratory tests check a sample of your blood, urine, or body tissues. Unless you enjoy reading dictionary of medical terms, your routine lab results can seem downright cryptic.
Laboratory test results, what is a laboratory test. Blood test results reveal blood disorders in blood tests and also with a blood test with rare blood types. Clinical interpretation of laboratory tests clinical interpretation of lab tests widmanns. Theres always the fear of messing things up and not being able to meet the patients health needs. Mosbys manual of diagnostic and laboratory tests pdf free. Laboratory tests, interpretation, and use of resources. Widmanns bridges the relevant physiology and pathophysiology over to the clinical tests. Covid19 client letter and requisitions mailout 2020. Keep in mind, normal test values are usually given as a range, rather than as a specific number, because normal values vary from person to person. Lab medicine resources for the health professional aacc, a global scientific and medical professional organization dedicated to clinical laboratory science and its application to healthcare, launched lab tests online in 2001 so that patients and caregivers can learn about the many tests. Mar 23, 2020 laboratory tests check a sample of your blood, urine, or body tissues. Interpretation of laboratory tests university of washington. Laboratory tests interpretation by nurses reasearch publication continuing education 2001 all rights reserved.
The new edition of widmanns clinical interpretation of laboratory tests will update the student and practitioner on the newest laboratory tests and the efficacy of those tests that have been in use in this decade. To learn more about laboratory medicine in general. Serum thyroxine test t4 level this test measures the amounts of thyroxine in the blood. Interpretation of clinical laboratory tests date serum liquid component disolved components, drugs, electrolytes, gases, etc. An estimated 7 to 10 billion laboratory tests are performed each year in the united states alone. Patient education on blood, urine, and other lab tests. Interpret the clinical significance of abnormal laboratory values. There are numerous laboratory tests that can be done. I know its not a book, but mdezlabs is a great app for the ipodiphone, has every lab test imaginable, plus possible reasons for increasesdecreases. It considers what soil tests are, when they can be used reliably and consistently, and discusses what limits their application. First and foremost, you should ask yourself if the observed change is due to non.
Welcome to the interpreting lab, medical and clinical tests section of the website for physicians and pharmacists. Includes differential diagnoses, stepbystep approaches, and algorithms, all designed to answer your lab test questions in a flash. A laboratory test is a procedure in which a sample of blood, urine, other bodily fluid, or tissue is examined to get information about a persons health. Clinical interpretation of lab tests widmanns paperback. One thought on we cant stop using these 3 lab interpretation apps kenneth. Interpretation of the results of the differential must always be done with the total number of wbcs in mind. Clinical scientists have the responsibility for limited interpretation of testing results in their. It is the first nationally accepted publication that is appropriate for australian soils and conditions.
Arups laboratory test directory ltd contains complete, uptodate test information, including methodology and reporting times, collection and transportation specifications, reference intervals, test notes, and cpt codes. Widmanns clinical interpretation of laboratory tests clinical. A plain english approach, second edition this bestselling reference book provides both the need to know information, as well as the more indepth nice to know details relevant to your patients lab results. Laboratory tests to assess nutrition hospitalized patients are often assessed for nutritional status prior to or at the time of admission. It is essential that the nurse use the reference ranges from the laboratory that is performing those particular tests, which have been determined for the laboratory s own procedures, patient population, and so forth. Your doctor may also compare your results to results from. This section features links to clinical practice resources on lab, medical and clinical tests such as hba1c, spirometry, tfts thyroid function tests, lfts liver function tests and.
This course will take a closer look at these components. Thus, any given result should be interpreted based on the reference value of the laboratory in which the test was done. Lab test are integral to patient care and depend on cooperation and support of ward staff for accurate and timely interpretation of the results. Diagnostic and laboratory tests are tools that provide invaluable insights and information about the patient. The book covers a broad range of laboratory and diagnostic tests and studies that are delivered to varied patient populations in varied settings. Jan 01, 1991 the new edition of widmanns clinical interpretation of laboratory tests will update the student and practitioner on the newest laboratory tests and the efficacy of those tests that have been in use in this decade. If your doctor suspects you may be infected with toxoplasmosis, they may send a sample to the dr. Unique stepbystep approach to lab test interpretation a healthcare favorite since 2000, the clinicians guide to laboratory medicine has been widely used by over 50,000 physicians, physician assistants, and nurse practitioners across the world. Each laboratory test captured in this 2017 version has a brief explanation of the test or laboratory panel, reference values. Interpretation of equine laboratory diagnostics wiley. Understanding laboratory tests fact sheet national cancer. In the latter case, to make use of the test result a reference area for the analysis in question must be. This may include a history, an interview by a dietician, and laboratory tests. It is the only book that walks you from abnormal lab test to diagnosis through a series of steps.
To aid diagnosis to monitor progress to determine correct dosage 2. Education is a powerful tool that can help primary care physicians reassess and examine their laboratory test ordering and. Other tests provide more general information that helps doctors identify or rule out possible health problems. 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.
Too many misunderstandings occur from attempts to apply reference ranges from one laboratory to test results from another laboratory. Lab tests are used to help confirm a diagnosis, monitor an illness, and the patients response to treatment. Apr 10, 2020 for the tests offered by mayo medical laboratories, it provides interpretive guidance, along with necessary background clinical information to place the tests in proper context. Rel ati ons hp rmcy altered dose in renal failure, liver failure, e. In cases involving ui, urinalysis, with urine culture if indicated, is recommended. Cobalt, blood this test is used to detect high cobalt exposure and cobalt toxicity. Clinlabnavigator provides a comprehensive resource for healthcare professionals with more than 700 laboratory test interpretations, test utilization guidelines and transfusion guidelines. Different serologic markers or combinations of markers are used to identify different phases of hbv. The site is produced by aacc, a global scientific and medical professional. The most common tests include chemistry panels, hematology such as the complete blood count, and blood gases. The following chart gives the normal values for each type of wbc.
Some laboratory tests provide precise and reliable information about specific health problems. An interpretation manual is a practical guide to soil tests. This book should be of help to nursing in understanding some of the more common tests which are conducted. Unlike other resources, this book offers a stepbystep approach to lab test interpretation, ideal for learners who are unsure of the next step in the evaluation of an abnormal lab test. Widmanns isnt just page after page of lab tests with normal and abnormal valuesi recommend wallachs for that. Consult lab for exact procedure on rare occasions this test is ordered. Establishing laboratory evidence of immunity to varicella. Lab tests are organized by category as well as alphabetically making the test of interest simple to find. Liver damage, hemolysis, billary obstruction alkaline phosphatase normally 25normally 25160 iul160 iul. Jan 11, 2018 getting familiar with and interpreting laboratory values can be intimidating, particularly to new nurses. A manual of laboratory and diagnostic tests frances talaska. Utilize clinical laboratory data to monitor various disease states. In this book the standard technic of accepted procedures is given in the strictest detail together with an interpretation of all data obtained by standard tests.
A technician or your doctor analyzes the test samples to see if your results fall within the normal range. Interpretation of hepatitis b serologic test results. Many of the soil tests evaluated in the book are used throughout the world. It is vitally important that you understand the difference between our use in this book of the terms diagnostic tests and laboratory tests. Recognize normal ranges for common laboratory values in adults. Understanding laboratory tests fact sheet national. Interpretation of hepatitis b serologic test results hepatitis b serologic testing involves measurement of several hepatitis b virus hbvspeci. This can be the same patients earlier results, if this is possible, or be done by comparing to data from a normal population. She tells you that it depends on pretest probabilities because exercise stress testing is an imperfect test and has a sensitivity of 90% and a. Academy of acute care physical therapy apta task force. 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. Love how it presents the material in a simple, easy to understand manner by providing plausible reasons for the outcomes. Laboratory tests play a limited role in the evaluation of uncomplicated incontinence.
A practical guide to laboratory medicine and diagnostic imaging ebook ferris medical solutions fred f. I would highly recommend this book to anyone in the healthcare field, especially nursing students. Includes common lab tests, therapeutic drug monitoring, microbiology, diagnostic imaging, etc. Using urinary sodium concentration to help classify volume status. Know boxes provide additional key facts as quick references throughout the book. Interpretation of laboratory results acute care testing. The best book is the one have in my pocket, not the one in my locker or at home. Using laboratory values can be a key piece of assessment to determine what is occurring within the body of a patient. Laboratory tests are an indispensable part of our array of clinical tools. The nurse must also have basic knowledge of lab tests in order to recognize trends that affect patients and in order to develop a good nursing care plan. Interpretation of diagnostic tests semantic scholar.
A medical laboratory or clinical laboratory is a laboratory where clinical pathology tests are. The laboratory testing cycle figure 1 consists of all steps between the time when a clinician thinks about and orders a laboratory test and the. The information for each test is prepared by a mayo clinic expert with direct oversight of that test. Over the years, our book has been widely used by nurse practitioner programs, including the university of texas, university of massachusetts, and suny. Interpretation of common laboratory tests the hospital.
Laboratory test samples are analyzed to determine whether the results fall within normal ranges. Serum, the remaining liquid, which can be used in blood tests to assist in determing how various body organs may be functioning when should we actually draw a blood test. Both test principles and result interpretation segments include illustrations to aid comprehension. A positive igg elisa result indicates that a person has antibodies to vzv either from past varicella disease or vaccination. Feb 26, 2009 this edition of basic skills in interpreting laboratory data, 4th edition is a casebased learning tool that will enhance your skills in clinical lab test interpretation. Pdf laboratory test result interpretation for primary care. Good blood tests make possible stateoftheart lab procedures that can be provided directly to the public in private and these blood tests can be provided affordably. Lab tests online is designed to help you, the patient or caregiver, understand the what, why, and how of laboratory testing. Identify common causes for abnormal laboratory values. You speak to the cardiologist on the phone and inquire whether testing would be mandated in each case.
Widmanns clinical interpretation of laboratory tests. We cant stop using these 3 lab interpretation apps. Interpretation of a laboratory result requires that the result can be related to a relevant reference value. Familiarizing and interpreting laboratory values for nurses dont always have to feel that way. Knowing the different normal lab values is an important step in making an informed clinical decision as a nurse. These chapters start with a general introduction of the test or disease being detected, followed by the test principle, reagents required for the test, procedures and steps to perform the test, and, finally, result interpretation. Information is provided on sampling techniques, the selection and use of an external laboratory, as well as nearpatient testing and the practice laboratory. It provides fundamentals of interpreting lab test results not only for pharmacy students, but also for practitioners as an aid in assessing patient drugtreatment responses.
Interpretation of equine laboratory diagnostics offers a comprehensive approach to equine laboratory diagnostics, including hematology, clinical chemistry, serology, body fluid analysis, microbiology, clinical parasitology, endocrinology, immunology, and molecular diagnostics. This concise, organized guide fits easily in a coat pocket, providing you with the tools necessary to tackle even the most challenging lab tests. A laboratory test is a medical procedure that requires a sample of blood, urine, tissue or substance in the body to check for certain features, changes or critters bacteria or viruses. This test cannot distinguish whether the antibodies were from a past episode of varicella or vaccination. In this instance, measurement of the urinary sodium concentration can be helpful. Lab values and their meanings forward the laboratory services are very pleased to see this report. Patient education on blood, urine, and other lab tests lab.
At the end of this program, each participant will be able to. Differential diagnoses for both increased and decreased lab results are listed helping direct the np in using the lab value to arrive at a diagnosis. Remington laboratory for specialty diagnostics, formerly known as the toxoplasma serology laboratory, for testing. Laboratory test results may influence up to 70 percent of medical decision making. Since the publication of the third edition, much has changedin the clinical lab and in the. Widmanns clinical interpretation of laboratory tests by sacher, ronald a. Mosbys manual of diagnostic and laboratory tests ebook and millions of other books are available for amazon kindle. The tests use a range because what is normal differs from person to person. List circumstances that may produce falsenegative or falsepositive laboratory results. Enter your mobile number or email address below and well send you a link to download the free kindle app. No part of this material may be reprinted, reproduced, transmitted, stored in a retrieval.
Laboratory test result interpretation for primary care doctors in south africa article pdf available march 2017 with 165 reads how we measure reads. It covers topics including organ function, nutritional elements, therapeutic drug monitoring and. Clients can access entries via an a to z index and search by test name, key word, test number, or mnemonic. Chickenpox interpreting laboratory tests varicella cdc. It is the only text written by and for pharmacists and provides case studies and practical information on patient therapy. Pdf mosbys manual of diagnostic and laboratory tests. Interpretation of common laboratory tests the hospital neurology. Mosbys manual of diagnostic and laboratory tests is a quick reference handbook designed to help you develop a clear concept regarding the most commonly used diagnostic and laboratory tests. An interpretation manual was commissioned and developed by the australian soil and plant analysis council aspac. Nov 22, 2001 veterinary laboratory medicine covers all aspects of basic clinical biochemistry and haematology, and includes test by test interpretation of laboratory results. They also may be checked for changes from any previous tests. A test oriented approach to laboratory medicine as opposed to a method or diseaseoriented approach.