Category Archives: Lab tests

Recurrent fever in a toddler

  I was recently asked if it’s normal for a toddler to have fevers up to 102.8.  This answer depends on a few things.  Timing of the fever is important;  it is notable that body temperature can increase at night, … Continue reading

Posted in Infection, Lab tests, Pediatrics | Leave a comment

Why is my urine dark after exercise?

Exercise can cause hematuria (red blood cells in the urine).  Red-brown urine can be seen after: Contact sports:  Football and boxing  (from suffering injury to the kidneys/bladder) Noncontact sports:  Long-distance running, spinning, swimming March hemoglobinuria – resulting from trauma to red … Continue reading

Posted in Exercise, Lab tests | Leave a comment