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Postoperative Considerations

Which of the following electrolytes is NOT a major contributor to the osmolarity of the intracellular compartment?

a. Chloride

b. Magnesium

c. Phosphate

d. Potassium

What is the approximate daily liquid requirement for an average-sized adult?

a. 20 mL/kg per day

b. 30 mL/kg per day

c. 40 mL/kg per day

d. 50 mL/kg per day

Volume resuscitation with crystalloid solution primarily expands which of the following compartments?

a. Plasma

b. Vascular

c. Interstitial

d. Intracellular

Which of the following statements regarding isotonic (normal) saline solution is true?

a. It has a higher pH compared to plasma.

b. It has a lower chloride concentration compared to plasma.

c. When infused at large volumes, it can result in lactic acidosis.

d. Saline-induced acidosis usually has no adverse clinical consequences.

A 45-year-old woman recently underwent a total abdominal hysterectomy of a large myomatous uterus. Her course since surgery has been complicated by postoperative ileus, shown here, for which a nasogastric tube was placed. Which of the following is the most appropriate solution to replace volume lost in her gastric secretions?

a. Isotonic saline

b. Lactated Ringer

c. 5 percent dextrose in water

d. 5 percent dextrose in 0.45 percent normal saline with 20 mEq/L of potassium chloride

Which of the following is the LEAST common opiate used to treat postoperative pain following gynecologic surgery?

a. Fentanyl


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