A 40-year-old man presents to the emergency department with 3 days of persistent vomiting and cannot keep any fluids down. He has had several similar episodes over the past year, each with nausea and diffuse abdominal pain. He smokes about 15 cigarettes and about 1 g of cannabis daily, drinks wine twice weekly, and takes no regular medications. He says hot showers give brief relief. On examination he has dry mucous membranes and mild diffuse abdominal tenderness without guarding or rebound. Laboratory results: sodium 136 mmol/L (135-145), potassium 3.0 mmol/L (3.5-5.0), chloride 88 mmol/L (98-107), bicarbonate 34 mmol/L (22-29), creatinine 128 umol/L (60-110), glucose 5.2 mmol/L, lipase and liver enzymes normal.
| Heart rate | 108/min |
| Respiratory rate | 18/min |
| Temperature | 36.8 °C |
| O2 saturation | 98%, room air |
| Blood pressure | 104/66 mm Hg |
Question 1 of 30
Which one of the following is the most appropriate initial IV fluid for this patient?
Select 1. (0 / 1 selected)
Tip: right-click an answer (or press and hold on a phone) to strike it out. Drag over the question text to highlight it.