Laboratory Results Normal Values And Interpretation Pdf

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Reference values intervals for blood, urine, CSF, stool, and other fluids eg, gastric acid and commonly used panels are included.

Blood Tests: Normal Values

The results of the test will show if a person is within the normal lab values. According to the Food and Drug Administration FDA , normal lab test values are a set of upper and lower limits generally given as a range since normal values vary from person to person. Laboratory tests are commonly administered in discovering the cause of symptoms, confirming a diagnosis and screening for diseases. The information obtained from the test can also help rule out, asses and monitor the progression of a disease and plan for treatment. A doctor will send the sample collected to a laboratory for testing. The sample will be tested to see how it reacts to different substances. The results will then be returned to the doctor to determine health conditions.

Knowing the different normal lab values is an important step in making an informed clinical decision as a nurse. Diagnostic and laboratory tests are tools that provide invaluable insights and information about the patient. NCLEX will not give you values that are within normal range. Diagnostic testing involves three phases: pretest, intratest, and post-test. Nurses have responsibilities for each phase of diagnostic testing. In the pretest, the main focus is on preparing the client for the diagnostic procedure. Responsibilities during pretest include:.

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Clinical Laboratory Tests And Interpretation Pdf

Reference values vary based on several factors, including the specific laboratory that supplies them. A patient's blood test values should be interpreted based on the reference value of the laboratory in which the test was done; the laboratory typically provides these values with the test result. These values are listed in alphabetical order in the following table. Antidiuretic hormone ADH; arginine vasopressin. A-I, females. CA

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Normal Lab Values Reference Guide

Reference values intervals for blood, urine, CSF, stool, and other fluids eg, gastric acid and commonly used panels are included. N ote : The reference values provided in these tables should be used as guidelines only. Thus, any given result should be interpreted based on the reference value of the laboratory in which the test was done; the laboratory typically provides these values with the test result.

Clinical laboratory test results are a very important parameter in diagnosis, monitoring and screening. Thus a lot of data are provided and it is therefore imperative for patient care and safety that the clinicians are familiar with the tests and with interpretation of the results. The laboratory result must be interpreted on the background of a reference interval that is used to distinguish between "health" and "disease". The clinician must also evaluate the result from the knowledge of biological variation and be aware of the potential risk of false interpretation.

Normal Laboratory Values

Blood Tests: Normal Values

In this section of the NCLEX-RN examination, you will be expected to demonstrate your knowledge and skills of laboratory values in order to:. The client's current laboratory values are compared to the normal laboratory values, as above, in order to determine the physiological status of the client and to compare the current values during treatment to the laboratory values taken prior to a treatment. As previously discussed, clients must be educated about the purpose of the prescribed laboratory test, the procedure for the laboratory test and any preparation the laboratory tests that is indicated. For example, a client in the community may be instructed to remain NPO after midnight. Some central venous catheters have a couple or several lumens, one of may be used to withdraw a blood sample.

Readers should also be able to describe the general principles for selecting the most appropriate laboratory test based on its diagnostic performance characteristics. Chemistry questions and corresponding answer form are located after this CE Update article on page Frank H. According to Dr. Such an understanding is critical to good laboratory practice and patient outcomes. The purpose of this CE Update is to discuss the laboratory testing cycle and its importance in diagnostic decision making.

1 Response
  1. Elise A.

    This table lists reference ranges (expressed in both SI units and traditional units) for the most common laboratory tests and is intended for interpretation of.

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