Carla, a 120-lb. woman, and her twin brother Carlos, a 200-lb. man, decided to celebrate their 21st birthday by equally dividing a six-pack of beer, although neither had consumed much alcohol before this time. You would guess that
A. Carla will be more affected by the beer than Carlos
B. Carlos will be more affected by the beer than Carla
C. The twins will be equally affected by the beer
D. Neither will be affected by the beer, because beer does not contain enough alcohol to bring about intoxication

Ahealthy 26-year-old woman sustained a significant crush injury to her right upper extremity while on the job at a local construction site. she was brought to the emergency department and subsequently underwent pinning and reconstructive surgery and received perioperative broad-spectrum antibiotics. her blood pressure remained normal throughout her hospital course. on the second hospital day, a medical consultant noted a marked increase in her creatinine, from 0.8 to 1.9 mg/dl. her urine output dropped to 20 ml/h. serum creatine kinase was ordered and reported as 3400 units/l. questions what are the primary causes of this patient’s acute kidney injury? how should her kidney injury be categorized (as prerenal, intrarenal, or postrenal)? how should she be treated?