Even though these common pregnancyinduced laboratory aberrations are well recognized, very few laboratories routinely provide normal values for pregnant. Normal findings deviations from normal findings with probable causes temperature. The british committee for standards in haematology guidelines recommend a platelet. Guidelines of the american thyroid association for the diagnosis and management of thyroid. Lab tests are used to help confirm a diagnosis, monitor an illness, and the patients response to treatment. When hemoglobin a 1c is computed, values are usually 24% lower. Pdf laboratory reference intervals during pregnancy, delivery and. Compare your results to the range shown on your lab report. Prior to all laboratory testing in pregnancy, information should be provided to the pregnant woman about why the test is recommended, the implications of both a positive or negative result, the risk of disease transmission to the foetus if relevant and how the results will be delivered. The reference values provided in these tables should be used as guidelines only. A patients blood test values should be interpreted based on the reference value of the laboratory in which the test was done. Laboratory values in normal pregnancy wiley online. Normal values also commonly called the reference range, normal range or reference interval.
Thyroid function tests normal ranges vary thyroid iodine 1i uptake 10% to 30% of administered dose. Pregnancy normal value is greater than 11 grams per dekaliter. Routine preprocedure laboratory testing is the practice of ordering a set panel of tests for all patients undergoing a given procedure, irrespective of speci. There are only few studies on the variations of laboratory tests during normal pregnancies, especially during the first two trimesters. Platelets, on the other hand, remain in the normal nonpregnant range but mean platelet counts may be slightly lower than in healthy nonpregnant women. Platelets, on the other hand, remain in the normal non pregnant range but mean platelet counts may be slightly lower than in healthy non pregnant women. Normal lab values 2015 normal laboratory values in pregnancy laboratory test value hb 11 0 140 gl wcc 616 x 109l platelets 150400 x 109l mcv 80100 fl crp 07 gl sodium 140 mmoll potassium 3. The mean csf values for opening pressure, csf cell count, and protein concentration. Understanding your lab results visit laboratory normal assessment rangea serum free light chains serum kappa 3. Clinical practice guidelines for prenatal laboratory. The provision of safe, efficient and competent care was the catalyst to offer a quick resource tool that would assist nurses in. Lab values in the pregnantpostpartum client flashcards quizlet. 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.
Reference values intervals for blood, urine, csf, stool, and other fluids eg, gastric acid and commonly used panels are included. Platelets, on the other hand, remain in the normal nonpregnant range but mean platelet counts. Oct 17, 2018 pregnancy is a special time of a womans life that affects many different parts of the body. April 14, 2015 page 3 guidelines for prenatal laboratory screening and testing these guidelines represent a summary of current practice and recommendations for laboratory screening and testing in the prenatal period. Knowing the different normal lab values is an important step in making an informed clinical decision as a nurse. Pdf hematological profile of normal pregnant women in lagos. Assessing normal and abnormal pregnancy from 410 weeks. Using these references, as well as publications by other researchers in which normal values were determined across pregnancy for a number of analytes, we compiled a table of the most common, and some not so common, laboratory. Reference values vary based on several factors, including the demographics of the healthy population from which specimens were obtained and the specific methods andor. A wide range of biochemistry and haematology laboratory values changed during diabetic pregnancy comparable to physiological pregnancies. Overall, the values obtained were mean standard deviation sd. If your rbcs are bigger than normal, your mcv goes up. Normal laboratory values aids information, education. Normal reference ranges and laboratory values in pregnancy.
Pdf laboratory abnormalities in patients with covid2019. 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. The low normal range is considered to be about 106120k. Pregnancy results in many changes to laboratory tests which can be misinterpreted as abnormal. Reference values for clinical chemistry tests during normal pregnancy a larsson,a m palm,b lo hansson,a o axelssonb a department of medical sciences, clinical chemistry, university hospital, uppsala, sweden b department of womens and childrens health. The average white cell count during pregnancy is about 915k. We found that there is a substantial difference in normal values in some laboratory markers in the pregnant state when compared with the nonpregnant state. Most laboratory tests remain the same whether you are pregnant or not, while other laboratory tests that may be considered abnormal when not pregnant, can be considered normal during pregnancy.
Changes in laboratory values during pregnancy shad h. Slight decrease but remains within normal limits 1112. These values depend on the equipment or method used. No additional routine laboratory testing during diabetic pregnancies compared with physiological pregnancies is required. Human chorionic gonadotropin hcg is secreted by the developing placenta often as early as 6 days after conception. Despite low platelet numbers, haemostasis is often normal. Normal laboratory values of csf during pregnancy jama. Nonpregnant normal range is 12 to 16 grams per dekaliter. Routine laboratory testing before endoscopic procedures. May 14, 2020 knowing the different normal lab values is an important step in making an informed clinical decision as a nurse. A list of reference ranges in pregnancy during pregnancy. Normal laboratory values and results during pregnancy.
Consult your local laboratory for guidelines as to normal values. This increase is prompted by a higher level of erythropoietin. Hematology absolute neutrophil count male 17805380l 1. Normal laboratory values and results during pregnancy babymed. Feb 25, 2020 comparing the clients laboratory values to normal laboratory values. Guidelines for prenatal laboratory screening and testing. A hgb concentration from laboratory values is a direct measure of iron deficiency, as compared with hct, whereby it measures the quantity of total hgb per rbcs. This is not optimal as many biological markers changes during pregnancy and adequate reference values are of importance for correct clinical decisions. This book should be of help to nursing in understanding some of the more common tests which are conducted.
Normal maternal laboratory values test nonpregnant values pregnant values hematocrit 37%47% 32%42% hemoglobin 1216 gdl 1014 gdl platelets 150,000350,000mm3 significant increase 35 days after birth predisposes to thrombosis partial thromboplastin time ptt 1214 seconds slight decrease in pregnancy and again in. Home reference normal reference ranges for lab values during pregnancy activated partial thromboplastin time. Comparing the clients laboratory values to normal laboratory values. Presented in the following tables are normal reference ranges for some common laboratory test values that were determined across pregnancy. Normal reference ranges for laboratory values in pregnancy. Most laboratory tests remain the same whether you are pregnant or not, while other laboratory tests that may be considered abnormal when not. Reference values for clinical chemistry tests during normal. Normal values symptoms, diagnosis and treatment in the merck manual. Thyroid function tests normal ranges vary thyroid iodine 1i uptake 10% to 30% of administered dose at 24 h. Sep 19, 2012 each commercial laboratory has its own set of normal values, called normal range or reference range on your lab report.
Urine pregnancy test is one of the simplest laboratory tests. Thus, any given result should be interpreted based on the reference value of the laboratory in which the test was done. If your red blood cells are smaller, you could have a type of anaemia. Parameter nonpregnant first second third trimester trimester trimester t 4 mgdl 511 35% increase 65% increase 65% increase free t 4 ngdl 0. Alanine aminotransferase alt, sgpt at 37c 1040 ul 0.
Type 1 diabetes, pregnancy, laboratory values, haematological. Normal laboratory values msd manual professional edition. Laboratory tests to monitoring physiological pregnancy. How do labs deviate from the non pregnant patients norms. It is important to consider normal reference ranges specific to pregnancy when interpreting some laboratory results that may be altered by the normal changes of pregnancy. Introduction a variety of laboratory tests are done in the neonatal period on a routine basis, many as pointofcare testing. Estriol, total, serum in pregnancy 2428 wks 3236 wks 30170 ngml 60280 ngml 104590 nmoll 208970 nmoll. Pdf physiological changes during pregnancy may affect laboratory parameters. Lab values and their meanings forward the laboratory services are very pleased to see this report. Objective of the study was to find out expected variations, if any, in liver function tests lft in normal pregnancy during the third trimester.
Laboratory values see inside back cover for continuation. Cerebrospinal fluid samples from 44 pregnant women undergoing spinal anesthesia for delivery were studied to determine whether an abdomen distended with a fullterm fetus could alter the dynamics of lumbar csf. Deering 623 appendix b table b1pregnancyinduced changes in thyroid function. Each commercial laboratory has its own set of normal values, called normal range or reference range on your lab report. Reference values for clinical chemistry tests during normal pregnancy a larsson,a m palm,b lo hansson,a o axelssonb a department of medical sciences, clinical chemistry, university hospital, uppsala, sweden b department of womens and childrens health, obstetrics and gynecology, uppsala university, uppsala, sweden. Laboratory reference intervals during pregnancy, delivery and the.
Below are the normal ranges for various lab tests whether. Biochemical tests in pregnancy australian prescriber. Interpreting any clinical laboratory test involves comparing the patients results to the normal values. The immunochemiluminometric assay for serum hcg provides a fast and accurate test for pregnancy. That could happen if you have low vitamin b12 or folate levels. Reference values for clinical chemistry tests during. It is determined by collecting data from vast numbers of laboratory tests. Laboratory values in normal pregnancy practical obstetrics.
In general, most of the analytes have lower concentrations than in the non pregnant state due to increased intravascular volume while the free active fractions, such as ionized calcium, remain unchanged. It increases up to term, and can go as high as 25k during labor. Lab values in the pregnantpostpartum client flashcards. Reference ranges, normal, abnormal and cutoff values are provided as. In this article, all values except the ones listed below denote blood plasma concentration, which is approximately 60100% larger than. Home reference normal reference ranges for lab values during. Values between 11 to 12 are called the psuedoanemia of pregnancy. For comparison, normal values for nonregnant women are listed when available. Diagnostic and laboratory tests are tools that provide invaluable insights and information about the patient.
Laboratory tests reference ranges 1,25dihydroxyvitamin d 1,25dihydroxycholecalciferol, serum see vitamin d metabolites 17hydroxyprogesterone, serum female, follicular. Blood, plasma, and serum reference values vary based on several factors, including the specific laboratory that supplies them. A reference range is usually defined as the set of values 95 percent of the normal population falls within that is, 95% prediction interval. The mean csf values for opening pressure, csf cell count, and protein concentration were all normal. Laboratory tests to monitoring physiological pregnancy padoan. Lab test are integral to patient care and depend on cooperation and support of ward staff for accurate and timely interpretation of the results. Pregnancy is a special time of a womans life that affects many different parts of the body. All the women invited to participate in the study had normal.