A 30-year-old developed flulike symptoms with fatigue, afternoon fever, night sweats, weight loss, abdominal cramping, and significant diarrhea. She had taken in very little water over the few days prior to admission the hospital. Blood tests revealed the following:
| Hematocrit (Hct): | 56% |
| Leukocytes: | 1000/cu mm |
| Serum potassium: | 3.2 mEq/L |
| CD4 T-cell counts: | <200/µl of blood |