Frequently Used Abbreviations
- ALT
alanine aminotransferase
- AST
aspartate aminotransferase
- BUN
blood urea nitrogen
- CBC
complete blood count
- CNS
central nervous system
- CSF
cerebrospinal fluid
- CT
computed tomography
- ECG
electrocardiography
- ED
emergency department
- EEG
electroencephalography
- ESR
erythrocyte sedimentation rate
- GI
gastrointestinal
- GU
genitourinary
- Hct
hematocrit
- Hgb
hemoglobin
- MRI
magnetic resonance imaging
- WBC
white blood cell
A 6-year-old boy complains of leg pain during times of inactivity. The pain is diffuse, affects both legs simultaneously, and feels like “pins and needles.” The episodes occur intermittently throughout the day and are more intense at night, preventing sleep. In the last week, the discomfort has occurred during sleep, waking him. Massage and movement usually bring relief, with occasional need for acetaminophen.
The episodes began 1 year ago, happened one to two times per month, and now occur several times per week and are more intense. He is noted to be “squirming” while sitting still....