Question bank

Catfish caught in a freshwater stream in Florida has been identified as exceeding the action level for polychlorinated biphenyls in fish (PCBs). Which regulatory agency is responsible for defining these action levels?

Afather and son come to your office because of persistent diarrhea. They relate the presence of watery diarrhea for over 2 weeks. They noted that the diarrhea began after returning from a Boy Scout camping trip in the Rocky Mountains. The diarrhea has waxed and waned for 2 weeks. It is nonbloody and foul smelling. They have had increased flatulence and mild abdominal cramping. What would be the most appropriate treatment?

Which regulatory agency enforces standards in the sale of meat?

A 5-year-old male is admitted to the hospital following a 3-week history of spiking fevers and fatigue. Your examination reveals pale mucous membranes and skin. You also find splenomegaly. You are concerned about a possible malignancy. What is the most common malignancy of childhood?

For each organism causing food-related illness, choose the corresponding average incubation period. What is the average incubation period of Clostridium perfringens?

A 5-year-old male is admitted to the hospital following a 3-week history of spiking fevers and fatigue. Your examination reveals pale mucous membranes and skin. You also find splenomegaly. The best course of care for this young man would be which of the following?

For each organism causing food-related illness, choose the corresponding average incubation period. What is the average incubation period of C. botulinum?

While in the emergency department you see a 3-week-old infant. The mother says that the child felt warm earlier in the day and has not been eating very well. The infant has a temperature of 100.9°F and has mildly decreased tone. What is the most appropriate initial management?

A 4-year-old is brought to your office by his mother for evaluation. She is concerned because the child has been spiking fevers and pulling on his left ear. Your examination reveals a bulging and erythematous tympanic membrane (TM). Which of the following is most likely to be the cause of his illness?

For each organism causing food-related illness, choose the corresponding average incubation period. What is the average incubation period of Staphylococcus aureus: under 4 hours

You see a 2-month-old infant in the emergency department for vomiting. The mother says that the baby has been spitting up more over the past few days and has become more irritable. She denies any fever, diarrhea, or change in formula. The mother tells you that there is a family history of "heartburn" and that her other children have all spit up. The infant has some emesis in the emergency department that seems to be formula mixed with some bile. The infant is intermittently irritable and sleepy. What is the most concerning diagnosis that this could be?

For each organism causing food-related illness, choose the corresponding average incubation period. What is the average incubation period of Salmonella?

You see a 2-month-old infant in the emergency department for vomiting. The mother says that the baby has been spitting up more over the past few days and has become more irritable. She denies any fever, diarrhea, or change in formula. The mother tells you that there is a family history of "heartburn" and that her other children have all spit up. The infant has some emesis in the emergency department that seems to be formula mixed with some bile. The infant is intermittently irritable and sleepy. Which of the following would be the most appropriate initial test?

Several groups of organic compounds are associated with serious toxic effects when used in transformers because they withstand high temperatures

Several groups of organic compounds are associated with serious toxic effects when used as insecticides and responsible for more deaths on a worldwide basis than any other group of insecticides

Several groups of organic compounds are associated with serious toxic effects when highly toxic and dangerous as a solvent; used in the manufacture of rubber, dyes, and lubricating oils

On a Monday morning you see a 12-year-old otherwise healthy boy in the emergency department. The parents brought the boy in because they noticed that he started to have an abnormal gait in the past few days. He seems to be shuffling his feet. The boy complains that his legs feel heavy and are tingling. He relates that his arms feel fine. His past history is significant for attention deficit/hyperactivity disorder (ADHD) for which he is taking methylphenidate. He denies trauma or taking any other medicines or drugs. On examination, he is afebrile with normal vital signs. His entire physical examination is normal with the exception of the examination of is lower extremities. He has 3/5 strength throughout both of his lower extremities with a normal muscle mass. His all joints have a full range of motion, without any pain or swelling. His reflexes are absent and he describes some paresthesias of his feet and ankles. What is the most likely diagnosis?

A 4-year-old girl is brought in to the office by her mother. She developed chicken pox about 6 days ago. She appeared to be recovering well but mother became concerned because she was persistently scratching at several of the lesions and they were not healing. On examination, the child is afebrile and generally well appearing. On examination of her skin you see the following image What would be the most appropriate treatment?

For each of the following scenarios, select the gas exposure responsible for the signs and symptoms. A sewer worker has acute onset of nausea, headache, and shortness of breath, and has anosmia.

A 4-year-old is brought to your office by his mother for evaluation. She is concerned because the child has been spiking fevers and pulling on his left ear. Your examination reveals a bulging and erythematous tympanic membrane (TM). You determine that the child should receive antibiotics. The initial antibiotic of choice should be?