The universal donor of RBCs, but not necessarily plasma, is blood type.
AB, Rh-negative
O, Rh-negative
AB, Rh-positive
O, Rh-positive
ABO, Rh-negative
The Correct Answer is B
A. AB, Rh-negative: AB RBCs carry both A and B antigens, so they cannot serve as universal RBC donors (but AB plasma is often considered a universal plasma donor).
B. O, Rh-negative: O negative RBCs lack A, B, and Rh (D) antigens, so they are the universal donor for red blood cell transfusions.
C. AB, Rh-positive: AB positive RBCs have A, B, and Rh antigens and therefore are not universal RBC donors.
D. O, Rh-positive: O positive RBCs lack A and B antigens but express Rh (D) antigen, so they can’t be given safely to Rh-negative recipients; therefore they are not fully universal donors.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is E
Explanation
A. Prolactin (PRL): Prolactin is produced and secreted by the anterior pituitary (lactotrophs), not the posterior pituitary.
B. Thyroid hormone (TH): Thyroid hormones (T3/T4) are produced by the thyroid gland, not by the pituitary.
C. Adrenocorticotropic hormone (ACTH): ACTH is produced by the anterior pituitary (corticotrophs), not the posterior.
D. Growth hormone (GH): GH is secreted by the anterior pituitary (somatotrophs), not the posterior.
E. Oxytocin (OT): Oxytocin is synthesized in the hypothalamus and stored/released by the posterior pituitary
Correct Answer is B
Explanation
A. Platelets: Both serum and plasma lack platelets because platelets are cellular elements that are removed during processing.
B. Fibrinogen: Plasma contains fibrinogen (clotting factor), but during clotting fibrinogen is converted to fibrin and removed, leaving serum free of fibrinogen.
C. Glucose: Glucose is present in both plasma and serum.
D. Albumin: Albumin, the main plasma protein, is present in both plasma and serum.
E. Nitrogenous wastes: Both plasma and serum contain nitrogenous wastes (like urea, creatinine).
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