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Reporting of the results to the appropriate members of the healthcare team.

Compare the previous and current test results.

Additional responsibilities during post-test include: For example, if a contrast media was injected during a CT scan, the nurse should encourage the patient to increase fluid intake to promote excretion of the dye.

Ensuring the correct labeling, storage, and transportation of the specimen.ĭuring the last part of diagnostic testing, the nursing care revolves around observations and follow-up activities for the patient.

Providing emotional support to the patient and monitoring the patient’s response during the procedure.

Use of standard precautions or sterile technique if necessary.

Additional responsibilities during intratest are:

Providing information and answering client questions about the procedure.ĭuring intratest, the main focus is specimen collection and performing or assisting with certain diagnostic procedures.

Preparation of a consent form, if required.

Preparation of the equipment and supplies needed.

Assessment of the patient to assist in determining precautions.

In the pretest, the main focus is on preparing the client for the diagnostic procedure. Nurses have responsibilities for each phase of diagnostic testing.

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Feel free to share these cheat sheets for normal lab values!ĭiagnostic testing involves three phases: pretest, intratest, and post-test.

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You can download a summary or cheat sheet of this normal laboratory values guide below.

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Download Free Normal Lab Values Cheat Sheet.

Please note that laboratory values may vary from agency to agency. Lab tests are used to help confirm a diagnosis, monitor an illness, and the patient’s response to treatment. Diagnostic and laboratory tests are tools that provide invaluable insights and information about the patient. Published by the BMJ Publishing Group Limited.Knowing the different normal lab values is an important step in making an informed clinical decision as a nurse. The risk of mortality increases at sodium concentration >139 mmol/L, well within reference range currently considered normal.ĮPIDEMIOLOGY INTERNAL MEDICINE PUBLIC HEALTH.

The range for serum sodium concentration on admission in inpatients is broader and lower than the commonly accepted reference range. Patients with a serum sodium concentration of 145 mmol/L on admission have a risk of inhospital death 3.7 times higher than that of a patient with a concentration of 140 mmol/L. Emergency admissions had lower levels and those admitted from care homes higher levels, risk of inhospital death began to rise at 140 mmol/L, well within the 'normal' range. Levels among hospital inpatients were significantly lower than in outpatients of the same age. We investigated the distribution of sodium values within these groups and explored the relationship between serum sodium and death using logistic regression. We used routine hospital data on serum sodium in inpatients admitted between 1 January 2011 and 31 December 2014 and patients attending outpatient or community clinics with no record of admission to the same hospitals in the same period. To describe the association between sodium and mortality. To ascertain correlates of serum sodium among older inpatients. To describe the range of serum sodium in inpatients and outpatients of both sexes at different ages. The usual reference range of serum sodium (typically 135-145 mmol/l) is derived from healthy populations but may not apply to hospital patients.