Plasma electrolytes include
fibrinogen, globulins, and albumin
bicarbonate, magnesium, chloride, and potassium ions
monocytes, basophils, and eosinophils
creatinine, urea, and uric acid
The Correct Answer is B
A. Fibrinogen, globulins, and albumin: those are plasma proteins, not electrolytes (they’re large molecules, not ions).
B. Bicarbonate, magnesium, chloride, and potassium ions: these are ions dissolved in plasma and are classically considered electrolytes.
C. Monocytes, basophils, and eosinophils: those are white blood cells (formed elements), not electrolytes.
D. Creatinine, urea, and uric acid: those are nitrogenous waste/metabolites present in plasma, not electrolytes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Biliverdin: biliverdin is a green pigment formed during heme breakdown and does not contain iron.
B. Heme: the heme moiety of hemoglobin contains an iron atom (Fe²⁺) at its center that binds oxygen.
C. Bilirubin: bilirubin is a breakdown product of biliverdin and does not contain iron.
D. Globin: globin is the protein part of hemoglobin (amino-acid chains); iron is in the heme portion, not the globin polypeptide.
Correct Answer is C
Explanation
A. Bone marrow and the thymus: those are organs/tissues involved in blood cell production/maturation, not the formed elements themselves.
B. Blood and lymph: these are fluid compartments, not the formed cellular elements suspended in blood.
C. Blood cells and platelets: “formed elements” refers to erythrocytes, leukocytes, and platelets (the cellular/fragment components of blood).
D. Sodium and potassium: those are electrolytes/ions in plasma, not formed cellular elements.
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