Common Laboratory Reference Intervals January 2024 PDF
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Uploaded by mjp333
Temple College
2024
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Summary
This document presents common laboratory test reference intervals and values. It's useful for healthcare professionals in determining if patient results are within the typical range, supporting diagnostics and treatment decisions. The document comprises a table-based presentation of laboratory data and reference values for numerous tests.
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Common Laboratory Reference Intervals January 2024 Laboratory Test Conventional Units (SI Units) Activated partial thromboplastin 30-40 sec (30-40 sec) time (aPTT)...
Common Laboratory Reference Intervals January 2024 Laboratory Test Conventional Units (SI Units) Activated partial thromboplastin 30-40 sec (30-40 sec) time (aPTT) For those receiving anticoagulant therapy, aPTT is 1.5–2.5 times control value in seconds. Alanine aminotransferase (ALT; 4-36 U/L (4-36 U/L) formerly known as serum glutamate pyruvate transferase [SGPT]) Albumin 3.5-5.0 g/dL (35-50 g/L) Ammonia 10–80 mcg/dL (6–47 mcmol/L) Amylase 60–120 Somogyi units/dL (0.57 to 1.2 µkat/L) Aspartate aminotransferase 0-35 U/L (0-35 U/L) (AST) (formerly known as serum glutamic oxaloacetic transferase [SGOT]) Bilirubin Total: 0.3 - 1.0 mg/dL (5.1 - 17 mcmol/L) Indirect: 0.2 - 0.8 mg/dL (3.4 - 12 mcmol/L) Direct: 0.1 - 0.3 mg/dL (1.7 - 5.1 mcmol/L) Blood culture No growth Negative Bacteremia: Bacteria growing in the blood can often be grown in the culture medium in the microbiology laboratory. When bacteremia is suspected, antibiotics should be started immediately after blood cultures are obtained. Blood gases – arterial and Arterial pH 7.35-7.45 venous values Venous pH 7.31-7.41 PCO2 35-45 mm Hg PO2 80-100 mm Hg Venous PvO2 40-50 mm Hg Bicarbonate (HCO3). 21-28 mEq/L (21-28 mmol/L) Blood urea nitrogen (BUN) 10 - 20 mg/dL (3.6 - 7.1 mmol/L) Calcium 9-10.5 mg/dL (2.25-2.75 mmol/L) Carboxyhemoglobin (COHb) Nonsmoker: 0.01 𝛍𝛍mol/24 hr >10 𝛍𝛍mol/24 hr Phenobarbital Anticonvulsant 10 - 30 mcg/mL > 40 mcg/mL Phenytoin Anticonvulsant 10 - 20 mcg/mL > 30 mcg/mL Propranolol Antiarrhythmic 50 - 100 ng/mL > 150 ng/mL Salicylate Antipyretic, antiinflammatory, 100 - 250 mcg/mL > 300 mcg/mL analgesic Theophylline Bronchodilator 10 - 20 mcg/mL > 20 mcg/mL Tobramycin Antibiotic 5 - 10 mcg/mL > 12 mcg/mL Valproic acid Anticonvulsant 50 - 100 mcg/mL > 100 mcg/mL Vancomycin Antibiotic Peak: 20 - 40 mcg/mL > 40 mcg/mL Trough: 5 - 15 mcg/mL Note: Laboratory values may vary with different techniques and in different laboratories. Note: The NCLEX® will provide the laboratory test and result along with the reference range. Reviewed & Updated: January 18, 2024 References: Harding, M. et al. (2023). Lewis’s Medical-surgical nursing: Assessment and management of clinical problems (12th ed.). St. Louis: Elsevier. Ignatavicius, D., et al. (2024). Medical-surgical nursing: Concepts for clinical judgment and collaborative care. (11th ed.). St. Louis: Elsevier. Pagana, K., Pagana, T., & Pagana, T.N. (2023). Mosby’s diagnostic and laboratory test reference (16th ed.). St. Louis: Elsevier. Copyright © 2025 by Saunders, an imprint of Elsevier Inc.
