Nokea
Proteins found in muscle fibers include:
- A. Vimentin
- B. Saccharin
- C. Keratin
- D. Desmin
Correct Answer: D
Rationale: Desmin: Desmin is an intermediate filament protein found in muscle cells, providing structural support and maintaining the integrity of muscle fibers.
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Gingival hyperplasia is an adverse effect of therapy with:
- A. Phenytoin
- B. Cyclophosphamide
- C. Frusemide
- D. Carbamazepine
Correct Answer: A
Rationale: Phenytoin, an anticonvulsant medication, is well-known for causing gingival hyperplasia as a side effect.
Regarding intussusception in childhood:
- A. Incidence is most common in children over 3 years of age
- B. Barium enema is the investigation of choice
- C. Patient commonly presents with constant abdominal pain
- D. It is associated with Henoch-Schoenlein purpura
Correct Answer: D
Rationale: Intussusception is associated with Henoch-Schoenlein purpura, a condition that can cause inflammation and bleeding in the small blood vessels.
Regarding reflex anoxic seizures in children:
- A. ECG-rhythm strip is a must
- B. Asystole may be associated
- C. There is increased risk of epilepsy in adults
- D. Carbamazepine is the drug of choice
Correct Answer: B
Rationale: Reflex anoxic seizures in children are often triggered by a sudden noxious stimulus leading to transient asystole (cessation of heart activity). An ECG-rhythm strip is not always necessary there is no increased risk of epilepsy in adults and carbamazepine is not the drug of choice. Trauma can be a precipitating factor but the most relevant option is asystole.
Which of the following statements is incorrect regarding shock?
- A. In cardiogenic shock systemic vascular resistance is high
- B. In hypovolemic shock pulmonary capillary wedge pressure is reduced
- C. In distributive shock central venous pressure is increased
- D. In hypovolemic shock mean arterial pressure is normal
Correct Answer: D
Rationale: In hypovolemic shock
The best test to confirm the diagnosis of tuberculosis is:
- A. Chest X-ray
- B. Sputum culture
- C. Skin test
- D. Blood culture
Correct Answer: B
Rationale: Sputum culture is the gold standard for diagnosing tuberculosis, as it can identify Mycobacterium tuberculosis bacteria in a sample.