Nurse’s 5-Minute Clinical Consult: Diagnostic Tests by Springhouse

By Springhouse

Nurse's 5-Minute scientific seek advice: Diagnostic Tests covers over 500 diagnostic studies—from arthrocentesis to zinc blood levels—with step by step process guidance, basic findings, and irregular ends up in a quick-scanning layout. exams are prepared alphabetically, and every is gifted on one web page with constant headings, together with description, objective, sufferer coaching, educating issues, key steps, postprocedure care, precautions, issues, general findings, and irregular results.

Recurring icons spotlight warnings and interfering components. Illustrated, reproducible patient-teaching aids are incorporated the place applicable. hundreds and hundreds of illustrations, images, charts, and tables supplement the text.

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Nurse’s 5-Minute Clinical Consult: Diagnostic Tests

Nurse's 5-Minute medical seek advice: Diagnostic assessments covers over 500 diagnostic studies—from arthrocentesis to zinc blood levels—with step by step approach directions, general findings, and irregular leads to a quick-scanning structure. exams are prepared alphabetically, and every is gifted on one web page with constant headings, together with description, objective, sufferer guidance, educating issues, key steps, postprocedure care, precautions, problems, basic findings, and irregular effects.

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A higher titer doesn’t necessarily mean that rheumatic fever or glomerulonephritis is present; however, it does indicate the presence of a streptococcal infection. ◆ Serial titers, determined at 10- to 14day intervals, provide more reliable information than a single titer. An increase in titer 2 to 5 weeks after the acute infection, which peaks 4 to 6 weeks after the initial increase, confirms poststreptococcal disease. Teaching points ◆ Explain to the patient that this test ◆ ◆ ◆ ◆ ◆ detects an immunologic response to certain bacteria (streptococci).

Handle the sample gently to prevent hemolysis. ◆ Immediately place sample on ice or freeze it. 88 µkat/L). ABNORMAL RESULTS ◆ Elevated serum ACE levels may indi- cate sarcoidosis, Gaucher’s disease, or leprosy, but results must be correlated with the patient’s clinical condition. ◆ In some cases, elevated ACE levels may result from hyperthyroidism, diabetic retinopathy, or hepatic disease. ◆ Serum ACE levels decline as the patient responds to steroid or prednisone therapy for sarcoidosis. qxd 15/8/08 14:34 Page 31 Anion gap test OVERVIEW DIAGNOSTIC PROCEDURE INTERPRETATION DESCRIPTION KEY STEPS NORMAL RESULTS ◆ Measures the gap between measured ◆ Confirm the patient’s identity using ◆ Anion gap levels of 8 to 14 mEq/L (SI, cation and anion levels, which are usually equal (making serum electrically neutral), and provides information about the level of anions (including sulfate; phosphate; organic acids, such as ketone bodies and lactic acid; and proteins) that aren’t routinely measured in laboratory tests.

COMPLICATIONS Teaching points ◆ Explain to the patient that this test determines the most appropriate treatment for his diabetes and determines whether he has insulin resistance or an allergy to insulin. ◆ Tell the patient that the test requires a blood sample and that he may experience slight discomfort from the tourniquet and needle puncture. ◆ Inform the patient that he need not restrict food or fluids. ◆ Explain who will perform the test and where it’ll be done. 40 ◆ Hematoma at the venipuncture site serum with labeled beef, human, and pork insulin is considered normal.

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