NSG 533 - Exam 4 Questions with Correct Answers 2024

NSG 533 - Exam 4 Questions with Correct Answers Anemia can contribute to: - Answer -coronary ischemia Composition of blood - Answer -5.5L total. 50-55% = plasma; 90% water Erythropoesis is stimulated by... - Answer -erythropoetin Hemoglobin A - Answer -the majority of adult hemoglobin. 97% of circulating hemoglobin. 2 alpha and 2 beta chains. HbA2 - Answer -minor adult hemoglobin. 2-3% of circulating hemoglobin. 2 alpha and 2 delta chains. Hemoglobin F - Answer -Fetal hemoglobin. 2 alpha and 2 gamma chains. Has a greater affinity for and more regularly binds O2. Anemia - Answer -a decrease in circulating red blood cells in the body, as reflected by a reduction in hemoglobin, hematocrit, and/or RBCs. Less than 14 in men and less than 12 in women. Normal RBC - Answer -4.5-6 Normal Hemoglobin - Answer ->13 in men, >12 in women. Normal HCT - Answer -40-50in men; 35-45 in women. usually 3x the hemoglobin count. Reticulocyte count - Answer -Low (<0.5%) High (>2%) if high, bone marrow is trying to compensate for loss in hgb or red cells. problem exists outside of the bome marrow MCV (mean corpuscular volume) - Answer -description of the volume of an RBC. NOT DIAGNOSTIC RDW (red cell distribution width) - Answer -11.5-15 %; index of variation in RBC size and shape. Indicates evolving macro/microcytic anemia. MCH (mean corpuscular hemoglobin) - Answer -commonly used: 27 - 31 pg/ cell Amount of hemoglobin per RBC Microcytic anemia - Answer -Iron deficiency, thalassemia, inflammation. low MCV <80. Low reticulocyte count. Underproduction. macrocytic anemia - Answer -Underproduction. B12 deficiency, Folic Acid Deficiency, Antimetabolite drugs. MCV > 100; low reticulocyte count Normocytic Anemia - Answer -MCV 80-100; low reticulocyte count; ex: dilutional/iatrogenic secondary to phlebotomy.