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424.An 18-year-old man presents to the ED with right leg pain and swelling after swimming at a local beach. He reports swimming ...

Environmental Exposures 465 426.A 23-year-old construction worker is brought by ambulance to the ED with bilateral knee pain. He ...

428.A 26-year-old woman presents to the ED with a history of spilling hot soup over her left arm earlier in the day. She states ...

Environmental Exposures 467 431.A 25-year-old female scuba diver presents to the ED with multiple areas of periarticular joint p ...

433.A farmer in Texas presents to the ED with right leg numbness, localized edema, and tremors. He reports being out in the fiel ...

Environmental Exposures 469 436.A 31-year-old man presents to the ED with left calf pain. He reports general malaise, nausea, an ...

438.A 44-year-old woman returns from a mountain excursion with headache symptoms, nausea, and vomiting that are improving. Her i ...

Environmental Exposures 471 439.A 20-year-old college student presents to the ED with a cutaneous lesion as depicted below. He i ...

440.A 24-year-old man presents to the ED with diffuse facial pain, pruritus, erythema, and dizziness after reportedly falling on ...

Environmental Exposures 473 442.A 26-year-old man presents to the ED in agony with a Gila monster still attached to his arm afte ...

Environmental Exposures Answers 420.The answer is b.(Rosen, pp 1972-1978.)Frostbite usually occurs when temperatures fall below ...

Environmental Exposures Answers 475 rupture. The rash is confined to clothed areasand may progress to a profunda stage, in which ...

476 Emergency Medicine 423.The answer is d.(Rosen, pp 2010-2019.)The patient sustained a low-voltage (< 1000 V) electrical in ...

Environmental Exposures Answers 477 (a)Fresh water activates the nematocyst and should be avoided. (b, d, and e)Vegetable oil, t ...

478 Emergency Medicine which causes cell denaturing upon contact. Ammonia (c)is present in many household cleaners, as a cooling ...

Environmental Exposures Answers 479 become necessary to account for losses. This is done using the Parkland formula:4 mL/kg/%TBS ...

480 Emergency Medicine 429.The answer is b.(Rosen, pp 801-812.)Please see explanation in previous question. 430.The answer is e. ...

Environmental Exposures Answers 481 An STD (a)is unlikely. Descent barotrauma (c)include sinus, ear, and skin squeeze. Divers wh ...

482 Emergency Medicine antivenin is dependent on the severity of these symptoms. Venom itself has a number of substances includi ...

Environmental Exposures Answers 483 these cases, as it has been proven as the most effective means of lowering the virulence of ...