Of the total serum osmolality, sodium, chloride, and bicarbonate ions normally contribute approximately what percent?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards

From $24.99Unlock all

Enhance your knowledge with the Ciulla Clinical Chemistry Test. Study with interactive quizzes, featuring flashcards and multiple-choice questions. Each question offers hints and explanations for better understanding. Prepare effectively and excel in your exam!

Multiple Choice

Of the total serum osmolality, sodium, chloride, and bicarbonate ions normally contribute approximately what percent?

Most of serum osmolality comes from sodium salts. In the blood, the major osmotic particles are sodium with its accompanying anions, mainly chloride and bicarbonate. A handy way to see this is the approximate formula for osmolality: about 2 × [Na+] + [glucose]/18 + [BUN]/2.8. With normal sodium around 140 mEq/L, 2 × [Na+] is about 280 mOsm/kg, which is the large bulk of the total osmolality (roughly 275–295 mOsm/kg). The additional contributions from glucose and urea add only a small fraction, so the combined contribution of sodium, chloride, and bicarbonate is about 92% of the total. That’s why the correct choice is the highest percent.

Of the total serum osmolality, sodium, chloride, and bicarbonate ions normally contribute approximately what percent?

Enhance your knowledge with the Ciulla Clinical Chemistry Test. Study with interactive quizzes, featuring flashcards and multiple-choice questions. Each question offers hints and explanations for better understanding. Prepare effectively and excel in your exam!

Of the total serum osmolality, sodium, chloride, and bicarbonate ions normally contribute approximately what percent?

Get the latest from Examzify