The proportion of test takers who answer an item correctly is called ________.

A mother brings her 3-year-old daughter to the emergency department because she is having trouble urinating. The child is not feverish. She has otherwise been healthy except for a bout of diarrhea about 10 days ago. Laboratory test results are as follows:

TEST RESULT RBC 4.30 x 1012/L (moderate schistocytes present on peripheral blood smear) WBC 5.00 x 109/L PLT 28 x 109/L HGB 13.0 g/dL HCT 39% MCV 89 fl MCH 28 pg MCHC 33% BUN 85 mg/dL (RR: 8 - 24 mg/dL) CREAT 3.3 mg/dL (RR: 0.2 - 1.3 mg/dL) Based on the history and the laboratory results, what is the most likely diagnosis? a. DIC b. Bartonella sp. infection c. HUS d. Previous Clostridium sp. infection

When treating skeletal injuries to the tibia and femur, external fixation devices apply ________________ and ________________ forces to the bones

Fill in the blank with the appropriate word.