WorksheetsHematological System Development Quiz
Total questions: 24
Worksheet time: 24mins
What happens around 14 days of gestation in the development of the hematological system?
RBC can be seen arising from embryonic connective tissues
Hemoglobin synthesis begins
Liver hematopoiesis starts
Primitive erythroblasts are detectable in circulating blood
Which of the following are functions of red blood cells (RBC)?
Carbon dioxide transport
Buffering of protons
Oxygen transport
Fighting infections
What changes occur in the hematological system between weeks 36 to 38 of gestation?
Transition from fetal to adult hemoglobin production
WBC count becomes equal to that of term infants
Liver hematopoiesis peaks
RBC contain 70% - 90% HbF at birth
How long do red blood cells (RBC) typically live in different stages of development?
Term infants: 60 to 70 days
All infants: 90 to 100 days
Preterm infants: 35 to 50 days
Adults: 100 to 120 days
Which of the following events occur during embryonic hematopoiesis?
RBC arising from embryonic connective tissues
Production of adult hemoglobin dominates
Hemoglobin synthesis begins
Liver hematopoiesis peaks
Which processes are involved in the function of red blood cells?
Oxygen transport via oxyhemoglobin
Carbon dioxide transport via carboxyhemoglobin
Buffering of protons via binding with hemoglobin
Production of white blood cells
What changes occur in hematopoiesis during late gestation?
Transition from fetal to adult hemoglobin production
Liver hematopoiesis peaks
Medullary bone marrow becomes the primary site of hematopoiesis
RBC count increases to adult levels
How does the lifespan of red blood cells differ between adults and newborns?
All RBCs have the same lifespan regardless of age
Term infant RBCs live for 60 to 70 days
Preterm infant RBCs live for 35 to 50 days
Adult RBCs live for 100 to 120 days
Which processes occur during the development of the hematological system in the embryo?
Transition from HbF to HbA production occurs at 36-38 weeks
RBC production from embryonic connective tissues begins at 14 days of gestation
Liver hematopoiesis peaks at 22 weeks of gestation
Primitive erythroblasts are detectable in circulating blood at 21-35 days of gestation
Which factors can delay the transition from fetal hemoglobin (HbF) to adult hemoglobin (HbA) production?
Fetal growth restriction
Maternal hypertension
Infants of diabetic mothers
Maternal hypoxia
Which of the following are functions of red blood cells (RBCs)?
Producing antibodies to fight infections
Buffering of protons via binding with hemoglobin
Oxygen transport via oxyhemoglobin
Catalyzing the reaction of carbon dioxide with water to form carbonic acid
How do the lifespans of red blood cells (RBCs) differ between adults, term infants, and preterm infants?
Adult RBCs survive for 100-120 days
Preterm infant RBCs survive for 35-50 days
Adult RBCs survive for 60-70 days
Term infant RBCs survive for 60-70 days
Which of the following are key components of the coagulation cascade?
Iron
Phospholipids
Calcium
Sodium
What are some causes of anemia at birth?
Underproduction of erythrocytes
Overproduction of white blood cells
Hemorrhage
Shortened RBC survival
Which of these are symptoms of acute blood loss in anemia of prematurity?
Tachycardia
Pallor
High blood pressure
Weak peripheral pulses
What are some diagnostic studies used for anemia of prematurity?
Hemoglobin concentration
Bone marrow biopsy
Blood type test
Reticulocyte count
Which of the following are key components of the coagulation cascade?
Vitamin C
Iron
Phospholipids
Calcium
Which of the following are causes of anemia at birth?
Underproduction of erythrocytes
Overproduction of platelets
Shortened RBC survival
Hemorrhage
Which of the following are associated factors in anemia of prematurity?
Shortened RBC life span
Increased blood volume
Temporarily inactive erythropoiesis
Low iron concentration
Which of the following are clinical presentations of acute blood loss in anemia of prematurity?
Weak or absent peripheral pulses
Elevated venous pressure
Tachycardia
Low or absent blood pressure
Which of the following are key components of the coagulation cascade?
Calcium
Phospholipids
Sodium
Iron
Which of the following statements accurately describe the process of fibrinolysis?
Plasmin initiates fibrin clot dissolution
FDP interfere with platelet function and thrombin activity
Plasminogen is converted to plasmin in the presence of a fibrin clot
Fibrin degradation products (FDP) promote coagulation
Which of the following are potential causes of anemia at birth due to hemorrhage?
Twin-to-twin transfusion in monochorionic twins
Traumatic amniocentesis
Umbilical cord rupture
Glucose-6-phosphate dehydrogenase deficiency
Which of the following are characteristic features of anemia of prematurity?
Increased iron concentration due to higher blood volume
Excessive phlebotomy for diagnostic studies
Shortened red blood cell lifespan
Temporarily inactive erythropoiesis due to improved extrauterine oxygen delivery
