Quiz week 44

Q 1. The following is true about Liver abscesses EXCEPT:

1. It is the commonest visceral abscess
2. The single most reliable lab abnormality is elevated Alkaline phosphatase
3. If due to Entamoeba histolytica, serology has high sensitivity
4. Mortality is similar - regardless of the initial intervention - surgery/percutaneous drain/antibiotics
5. Punch tenderness is positive in approximately 80-90% of cases

The answer is choice 5. It is the only FALSE statement. Punch tenderness is positive in about 50% of patients. It is true that the initial intervention could be antibiotics/percutaneous drainage or surgery and it would not make a difference to the mortality. The morbidity (days in ill health) may be different though. All other statements too are true. The sensitivity of the test for E. histolytica is about 95%.

Q 2. The following is true about Cystic Fibrosis EXCEPT:

1. Gene is on chromosome 7 and codes for the Chloride channel
2. Diagnosis can be made using nasal mucosa potential difference
3. Lungs show obstructive and restrictive pattern defects
4. Prophylactic IV aminoglycosides are recommended
5. Allergic bronchopulmonary aspergillosis is a well known complication

Choice 4 is the answer as it is the FALSE statement. IV antibiotics can be used for prophylaxis but are not a recommended form of prevention. The recommended method is inhaled aminoglycosides. All the other statements are true.