Waec Model Questions Vol1 2021 Biology Question 19

Practice objective / multiple choice question 19 from the 2021 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2021 Biology Objective / Multiple Choice Medium Difficulty
Question 19 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • BIOLOGY • objective

The normal plasma osmolarity of a healthy adult is about 300 mOsm/L. A patient receives an intravenous infusion of 250 mL of 5 % dextrose (D5W), which contains no solutes and therefore acts as free water. If the patient's plasma volume before the infusion is 3 L and no solutes are lost or added during the infusion, what will be the new plasma osmolarity after the infusion? Express your answer to the nearest whole mOsm/L.

Answer Options

A. 285 mOsm/L
B. 250 mOsm/L
Correct Answer C. 277 mOsm/L
D. 300 mOsm/L
Correct Answer
C
Correct Option:
277 mOsm/L

About This Question

This is Waec Model Questions Vol1 2021 Biology Question 19. It is a objective / multiple choice question from the 2021 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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