Laboratory reference ranges saskatoon health region. How to cite references in a lab report pen and the pad. Complete blood count reference intervals for healthy han. Reference ranges and what they mean private md labs. Article pdf available in clinical chemistry and laboratory. Reference ranges and what they mean the normal or reference range in reference to a lab test, what does out of the normal range actually mean. The tietz textbook of clinical chemistry and molecular diagnostics, 6th edition provides the most current and authoritative guidance on selecting, performing, and evaluating the results of new and established laboratory tests. Click to view labcorp s list of panic critical values. Learn vocabulary, terms, and more with flashcards, games, and other study tools. However, current reference intervals established by older instruments and technologies and those from american and european populations are not suitable for chinese samples due to ethnic, dietary, and lifestyle differences. Reference ranges vary depending on the instrument and the reagents used to perform the test. Knowing the different normal lab values is an important step in making an informed clinical decision as a nurse. Reference intervals are validated and updated periodically, and vary from method to method. The provision of safe, efficient and competent care was the catalyst to offer a quick resource tool that would assist nurses in.
Pathophysiology information that explains why a lab test result is increased or decreased. Lab daily routine tests lab batches poct point of care testing ref referral to other hospitals including use referral labs reference range note turn around time for tests referred to another hospital is 4 weeks or less unless specifically stated. Get the latest research and easy access to todays most important diagnostic and lab tests. Tietz textbook of clinical chemistry and molecular. A list of reference ranges in pregnancy during pregnancy. Lab tests are used to help confirm a diagnosis, monitor an illness, and the patients response to treatment. This table lists reference values for the most common laboratory tests and is intended for interpretation of the results as they are provided in the examination. Normal laboratory values etiology, pathophysiology, symptoms, signs. The reference values provided in these tables should be used as guidelines only. It is a must for anyone in nursing school or any medical profession, even if your program doesnt require it. The reference intervals for certain analytes are different in heparinized plasma compared to serum notably potassium, total. Feb 25, 2020 use the drop down menu below to jump to a specific section.
The following reference intervals have been established for the cobas 501 chemistry analyzer in the clinical pathology laboratory at cornell university, and went into effect on november 20th 2017. All csmls certification exam questions are referenced to a competency within the associated competency profile. Through novel knowledge translation initiatives, the caliper reference interval database has been made freely available online. For example, hemoglobin reference ranges should be established by gender and age while cortisol ranges should be subdivided by the time of day. This book titled cardiovascular care made easy is an excellent book on cardiac nursing. Ideally, reference ranges provide the expected range of values for a healthy population. Lab values and their meanings acknowledgement the lpn lab values manual was first compiled in response to a lack of information in the form of a quick reference manual for licensed practical nurses in 2008. Laboratory tests are procedures wherein a sample of blood, urine, other bodily fluid or tissue are checked in order to know more about a persons health. In an effort to simplify the complex world of laboratory testing and diagnosis. Ranges accompanying patient results should be deemed to. Every hospital determines the blood test reference range by measuring a large amount of patients within their region. Daviss comprehensive manual of laboratory and diagnostic tests with. A complete blood count test measures several components and features of your blood, including.
Pediatric reference intervals, fifth ed, aacc press. Once the puncture has been performed or the line specimen drawn, immediately remove all air from the syringe. Laboratory test reference ranges laboratory service calgary. Blood testing is a cornerstone component of any antiaging program.
For this reason, these values must be communicated to the attending physician immediately. This classic clinical chemistry reference offers encyclopedic coverage detailing everything you need to know, including. Use the drop down menu below to jump to a specific section. How to reference a lab manual in apa format pen and the pad. By comparing your test results with reference values, you and your healthcare provider can see if any of your test results fall outside the range of expected values and gain clues to help identify possible conditions or diseases. A reference range is a set of values that includes upper and lower limits of a lab test based on a group of otherwise healthy people. Results that are outside the laboratorys established reference intervals may be considered abnormal, but the terms abnormal and critical should not be used interchangeably. Jul 05, 2016 for example, the childrens health improvement through laboratory diagnostics childx programinitiated by arup laboratories and the university of utah department of pathologyand the canadian laboratory initiative in pediatric reference intervals caliper are two programs seeking to enhance the quality of reference intervals for children. Pdf canadian laboratory initiative on pediatric reference interval. Aug 24, 2018 all reference ranges are for use within the saskatoon health region. Access mclendon clinical laboratory tests cbc reference ranges.
However, there are several problems with the standard lab references listed on the blood test results you andor your doctor will receive from any lab. For species without established reference intervals, you should refer to general publications and textbooks as a guideline only. Daviss comprehensive handbook of laboratory and diagnostic. In these cases, written documentation must be produced for the laboratory to comply with this request. Every lab has its own reference range for troponin 1 levels. When your body is in homeostasis, the values for fluids, chemicals and secretions hormones are within an acceptable or normal range. Hemoglobin, the oxygencarrying protein in red blood cells. Each commercial laboratory has its own set of normal values, called normal range or reference range on your lab report. Saunders nursing guide to laboratory and diagnostic tests, 2nd edition is the perfect guide to laboratory testing for both students and practicing nurses alike. Diagnostic and laboratory tests are tools that provide invaluable insights and information about the patient. Mosbys diagnostic and laboratory test reference, 14th. How reference ranges determine a normal lab test result. Many important laboratory reference values are not listed here, because of the less frequent use of these tests.
Laboratory reference ranges december 2016 chemistry g. It is a great reference book and would be an excellent tool when initially learning about the tests as well. Because most blood test reference ranges often referred to as normal ranges of blood test results are typically defined as the range of values of the median 95% of the healthy population, it is unlikely that a given blood sample, even from a healthy patient, will show normal values for every blood test taken. All reference ranges are for use within the saskatoon health region.
The following reference materials appear in stedmans medical dictionary. Laboratory values see inside back cover for continuation. Methods for estimating them are expensive, difficult to perform, often inaccurate, and nonreproducible. Laboratory test reference ranges see individual test pages in the apl test directory for chemistry and hematology reference ranges.
When methodology and equipment is identical for testing a particular analyte among different laboratories, reference ranges for that analyte should be. Reference values intervals for blood, urine, csf, stool, and other fluids eg, gastric. A computerized indirect hoffmann method was studied for accuracy and reproducibility. Heres the one place to look for normal values and related needtoknow data. Which book is the best for lab reference values when at. But reference intervals, the ranges of values for a laboratory test that are associated with defined states of health, are not a trivial subject. All csmls certification exam answers are referenced to one or more textbooks from the reference textbook list.
When your body is healthy it functions normally in a state of homeostasis or equilibrium. Oct 18, 2019 knowing the different normal lab values is an important step in making an informed clinical decision as a nurse. Laboratory test reference ranges canadian laboratory services. What is the current state of reference intervals in canada. Normal laboratory values msd manual professional edition. These are great for looking up what value ranges are and what the test results may mean, however remember that each lab will have their own reference range. Reference values vary based on several factors, including the demographics of the healthy population from which specimens were obtained and the specific. We have blood gas and electrolyte ranges for dogs, cats, horses and cattle only. Some physicians or units may decline communication of critical values. Add a comma and then list the publication year, such as. Identify laboratory values for abgs ph, po2, pco2, sao2, hco3, bun, cholesterol total glucose, hematocrit, hemoglobin, glycosylated.
Mosbys diagnostic and laboratory test reference 7th edition. Reference ranges for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. In this section of the nclexrn examination, you will be expected to demonstrate your knowledge and skills of laboratory values in order to. Reference values vary based on several factors, including the demographics of the healthy population from which specimens were obtained and the specific methods andor. Cliacertified testing laboratories such as zrt are required to provide reference ranges as an aid to interpretation of test results. The new reference range values for pediatric care brings all the most vital range data plus diverse clinical evaluation and calculation tools all. Complete blood count cbc reference intervals are important to diagnose diseases, screen blood donors, and assess overall health. Reference ranges section hcp reference ranges page.
Each laboratory report will append the applicable reference range to each test result. Nurses are usually the first professionals to draw the labs and to look at the results. Tietz textbook of clinical chemistry and molecular diagnostics. You must cite basic information about the source within the text to let the reader know that youre borrowing from the another authors work. A complete blood count cbc is a blood test used to evaluate your overall health and detect a wide range of disorders, including anemia, infection and leukemia. Learn how reference range is determined for laboratory tests. Clinical laboratory reference values laboratory medicine. Some testing areas may wish to phone some abnormal results, and these discretionary decisions have not been built into the critical value list. Rittenhouse book distributors book detail 9780803674950. Ranges accompanying patient results should be deemed to be correct. At dynacare, our vision is to be canadas health and wellness solutions leader. The online database is useful to both laboratory professionals and physicians as it provides immediate access to accurate reference intervals for over 170 blood tests used in paediatric diagnostic care. These intervals were derived for serum samples only.
Reference ranges for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples reference ranges for blood tests are studied within the field of clinical chemistry also known as clinical biochemistry, chemical pathology or pure blood chemistry, the area of pathology that is generally concerned with analysis of bodily fluids. Cbc reference ranges, mclendon clinical laboratories unc. Mosbys canadian manual of diagnostic and laboratory tests e book. See individual test pages in the apl test directory for chemistry and hematology reference ranges. As part of our commitment and continuous efforts to enhance testing and support patient care, dynacare will be modifying reference ranges for the parameter provided for complete blood counts cbcs on july 17th, 2017. The reference ranges published here are for research purposes only. Cbc and automated differential and reticulocyte parameters. Access mclendon clinical laboratory tests cbc reference ranges cbc reference ranges, mclendon clinical laboratories unc medical center, hospitals chapel hill, nc skip to content.
Featuring the latest testing information organized alphabetically for quick reference, this resource offers test formats that emphasize the nurses specific role in all aspects of the testing process. Abnormal results are not considered critical values. I use a little book called rn notes that fits in my pocket and has a lot of reference info in it not just lab values. Hematology reference intervals alberta health services. Lab tests, along with a health history and physical exam, are used to diagnose and manage health conditions. Normal reference ranges and laboratory values in pregnancy. Hormone test units conventional reference range for women optimal range for women cortisol serum.
Reference range values for pediatric care aap ebooks. The study used data collected retrospectively for 5 analytes. Home reference normal reference ranges for lab values. The canadian laboratory initiative on pediatric reference intervals. Reference values intervals for blood, urine, csf, stool, and other fluids eg, gastric acid and commonly used panels are included. Laboratory tests reference ranges 1,25dihydroxyvitamin d 1,25dihydroxycholecalciferol, serum see vitamin d metabolites 17hydroxyprogesterone, serum female, follicular. Reference values vary based on several factors, including the demographics of the healthy population from which specimens. Vancouver island reference ranges reference range intervals from our vancouver island reference laboratory. The new reference range values for pediatric care brings all the most vital range data plus diverse clinical evaluation and calculation tools. If you mention the issuer in text, omit the name from. Nov 02, 2004 mosbys diagnostic and laboratory test reference 7th edition kathleen deska pagana, timothy j.
They are also advised to continually check for updated normal ranges. When you include information from a lab manual in text, put a citation inside parentheses. Appendix b selected normal pediatric laboratory values 1449 growth hormone s2 after infancy fasting specimen. Lower mainland reference ranges reference range intervals from our burnaby refererence laboratory. Ahs laboratory services edmonton zone hematology hematology reference intervals rherhj00009mul effective date. All practitioners are urged to consult the normal laboratory values for their local laboratory, as these may differ from those listed below. Invalid ones can lead to patients being taken off medication when they shouldnt, being discharged too early, or to other negative outcomes. The brief answer is that a result out of the normal range signals the need for further investigation or at least further explanation. Reference intervals are essential for clinical laboratory test interpretation and patient care. The results of the test will show if a person is within the normal lab values. Pediatric and adult reference interval harmonization in canada. We have reference intervals for hematology and chemistry for dogs, cats, horses, cattle, goats and alpacas.
V alues are reference values from texas children s hospital clinical laboratory, current as of august 2011. Blood test results with normal range reference chart. Saunders nursing guide to laboratory and diagnostic tests. It will be posted on the lab report, or in the computer. Establishing reference intervals for clinical laboratory test. Critical values are test results that are so abnormal that they generally indicate severe illness and require immediate medical intervention. Insert the name of the issuer of the manual, such as a company, a college department or an instructors surname. Anaerobically collect blood into a heparinized blood gas syringe see container. Reference ranges and what they mean lab tests online. The labs base their reference ranges on the results of all the blood samples each particular lab has tested. Preanalytical factors may also need to be controlled in order to insure that accurate reference ranges are derived. If youre writing a lab report for a science class and find that you need to quote or paraphrase information from another source, its important to cite the source properly.