A nurse is assessing a patient who has acute respiratory distress syndrome (ARDS). Which of the following findings should the nurse expect?

Choice A rationale

Metoclopramide is a medication used for stomach and esophageal problems. It is commonly used to treat and prevent nausea and vomiting, to help with emptying of the stomach in people

with delayed stomach emptying, and to help with gastroesophageal reflux disease. The antiemetic action of metoclopramide is due to its antagonist activity at D2 receptors in the chemoreceptor trigger zone in the central nervous system — this action prevents nausea and vomiting triggered by most stimuli.

Choice B rationale

While metoclopramide does have an effect on the muscles of the gastrointestinal tract, it does not work by relaxing them. Instead, it works by blocking dopamine receptors, which in turn stimulates motility in the upper gastrointestinal tract without stimulating gastric, biliary, or pancreatic secretions. This increased motility helps to speed up the rate at which the stomach empties into the intestines.

Choice C rationale

Metoclopramide does not work by decreasing gastric acid secretions. In fact, one unique property of this drug is that it does not increase gastric acid secretion. Its primary mechanism of action is to block dopamine receptors, thereby increasing muscle contractions in the upper digestive tract.

Choice D rationale

This is correct. Metoclopramide enhances gastric emptying. It is used to treat conditions like gastroesophageal reflux disease and diabetic gastroparesis, where delayed gastric emptying is a problem. By blocking dopamine receptors, metoclopramide increases muscle contractions in the upper digestive tract, speeding up the rate at which the stomach empties into the intestines.

Step 1: Convert All Fluid Intake to Milliliters (mL)

To accurately record the patient's fluid intake, first, convert each fluid measurement to milliliters:

• 1 cup of coffee = 240 mL
• 4 oz of orange juice = 118.3 mL
• 3 oz of water = 88.7 mL
• 1 cup of flavored gelatin = 236.6 mL
• 1 cup of tea = 240 mL
• 5 oz of broth = 147.9 mL
• 3 oz of water (another serving) = 88.7 mL

Step 2: Calculate Total Fluid Intake

Add all the converted fluid amounts together:

• Total fluid intake = 240 mL (coffee) + 118.3 mL (orange juice) + 88.7 mL (water) + 236.6 mL (gelatin) + 240 mL (tea) + 147.9 mL (broth) + 88.7 mL (water) = 1,160.2 mL

Step 3: Round to the Nearest Whole Number

Round the total to the nearest whole number:

• Rounded total = 1,160 mL

The nurse should record 1,160 mL on the patient’s chart.