Understanding the composition and function of blood components

Comprehending the composition and function of blood components is essential for phlebotomists, as it underpins their ability to handle blood specimens with precision and contribute to accurate diagnostic testing. Blood consists of several distinct components, each playing a vital role in maintaining homeostasis and overall health. Red blood cells (erythrocytes) are responsible for transporting oxygen from the lungs to body tissues and carrying carbon dioxide back to the lungs for elimination. White blood cells (leukocytes) form a crucial part of the immune system, defending the body against infections and foreign invaders. Platelets (thrombocytes) are instrumental in blood clotting, preventing excessive bleeding and promoting wound healing. Plasma, the liquid component of blood, serves as a medium for transporting nutrients, hormones, and waste products throughout the body.

Reference:

  • Bishop, M. L., Fody, E. P., & Schoeff, L. E. (2017). Clinical Chemistry: Techniques, Principles, Correlations (8th ed.). Wolters Kluwer.

Phlebotomists must possess a comprehensive understanding of the functions and characteristics of these blood components to ensure the appropriate handling and processing of blood samples. The knowledge of blood composition allows phlebotomists to recognize abnormal results, identify potential specimen interferences, and maintain the integrity of blood samples during collection and transportation, ultimately contributing to the reliability and accuracy of laboratory testing.

Reference:

  • McCall, R. E., Tankersley, C. M., & Lehman, C. M. (2017). Phlebotomy Essentials (6th ed.). Lippincott Williams & Wilkins.

Moreover, an in-depth understanding of blood components equips phlebotomists with the knowledge necessary to address patient inquiries regarding laboratory tests and procedures. Effective communication regarding the significance of specific blood components, their roles in health and disease, and the implications of abnormal results fosters patient trust and engagement, contributing to a positive healthcare experience.

Reference:

  • Strasinger, S. K., & Di Lorenzo, M. S. (2014). Phlebotomy: Worktext and Procedures Manual (4th ed.). Elsevier.