Whole blood consists mostly of which of the following? Select one: a. Water b. Cells c. Solutes d. Tissue Rationale - whole blood is composed of water, solutes, and cells. Whole blood is 55-60% plasma and 40-45?lls. Plasma is about 92% water The correct answer is: Water Which type of blood cell is responsible for gas exchange in the circulating blood? Select one: a. Macrophages b. Red blood cells c. White blood cells d. Platelets Rationale - Red blood cells (erythrocytes) transport oxygen and help transport Carbon Dioxide. The correct answer is: Red blood cells Professional negligence is also called: Select one: a. Malfunction b. Malice c. Arbitration d. Malpractice Rationale - Malpractice is a form of professional negligence The correct answer is: Malpractice Which of the following items is the most important for phlebotomists to keep in mind during their daily routine in medical settings? Select one: a. Consent b. Burglary c. Privilege granted to a physician d. Confidentiality Rationale - Patient confidentiality is the most important part of the health care industry. The correct answer is: Confidentiality Which department performs chemical screening tests on urine specimens? Select one: a. Coagulation b. Microbiology c. Urinalysis d. Hematology Rationale - The urinalysis department performs chemical screening on urine specimens as part of a urinalysis test The correct answer is: Urinalysis Which department monitors warfarin therapy? Select one: a. Immunology b. Chemistry c. Microbiology d. Coagulation Rationale - Warfarin is an anticoagulant and is monitored closely by the prothrombin time test which is performed in the coagulation department The correct answer is: Coagulation Which type of blood cell is responsible for defense and immunity? Select one: a. Macrophages b. Red blood cells c. Platelets d. White blood cells Rationale - Leukocytes (white blood cells) are responsible for defense and immunity The correct answer is: White blood cells The liquid portion of a blood specimen (without an anticoagulant) is called: Select one: a. Serum b. Oxygenated blood c. Cellular components d. Plasma