Which of the following antibodies would you find in the plasma of a person with type O blood?
anti-A and anti-B
anti-A
anti-B
Not enough information to answer
The Correct Answer is A
a) anti-A and anti-B: People with type O blood have: No antigens (neither A nor B) on their red blood cells, Both anti-A and anti-B antibodies in their plasma This is because: The immune system produces antibodies against the A and B antigens that are not present on the person's own red blood cells. Type O individuals lack both A and B antigens, so they develop both antibodies
b) anti-A alone would be found in type B individuals
c) anti-B alone would be found in type A individuals
d) No enough information: There is enough information - blood type determines the antibodies present
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
a) Stimulates the formation of white blood cells: This is associated with bone marrow and not parathyroid hormone (PTH).
b) Parathyroid hormone (PTH) increases blood calcium levels by stimulating bone resorption, increasing calcium reabsorption in the kidneys, and activating vitamin D to increase calcium absorption from the gut.
c) Increases the level of sodium ions in the blood: Aldosterone regulates sodium levels, not PTH.
d) Increases the level of potassium ions in the blood: This is also regulated by aldosterone and the kidneys, not PTH.
e) Increases the level of glucose in the blood: Glucagon and cortisol are more directly involved in increasing blood glucose.
Correct Answer is A
Explanation
a) Megakaryoblast: The megakaryoblast is the precursor cell in the bone marrow that eventually becomes a megakaryocyte, which fragments to form platelets (thrombocytes).
b) Proerythroblast: This cell gives rise to red blood cells (erythrocytes), not platelets.
c) T lymphoblast: This is a precursor to T lymphocytes, part of the adaptive immune system.
d) Monoblast: This cell gives rise to monocytes, which become macrophages in tissues.
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