Mastering Blood Flashcards
Which of these plasma proteins is important for transporting iron?
Transferrin
What makes erythrocytes unique from other cellular components of the blood?
They contain hemoglobin.
A patient takes a drug that decreases liver production of albumin. Which would you expect?
Decreased osmotic pressure and increased water in interstitial fluid
Which of the following is the fluid matrix of blood?
Plasma
What is the stimulus for synthesis and release of erythropoietin?
Low oxygen in tissues
In which of the following locations would hematopoiesis occur in adults?
Ribs
Hematopoiesis is controlled by cytokines. What is the definition of a cytokine?
A peptide or protein released from one cell that affects the activity or growth of another cell
Which value is in the normal range for an adult female?
Hematocrit = 44%
A patient has a decreased amount of ferritin. Which of the following would you expect?
Anemia and decreased erythropoiesis
A patient makes antibodies that recognize antigens on red blood cells and leads to the destruction of these cells. Which would you expect?
Autoimmune hemolytic anemia
Which organelles are present in mature erythrocytes?
None of these.
Endoplasmic reticulum, Nucleus, Mitochondria
A normal hemoglobin molecule consists of how many globin proteins and heme groups?
Four globin protein chains, each one with a heme group associated with it
Hemostasis has three major steps. The first is vasoconstriction and the final step is coagulation. What occurs between these two steps?
Formation of a platelet plug
The binding of platelets to collagen can stimulate a positive feedback loop that results in more platelets adhering to collagen. Which signal causes the positive feedback loop?
Platelet-activating factor (PAF)
Hemophilia is a blood disorder resulting from defects in ________.which of the following?
coagulation factors
