Lesson 5 Scabies. Pediculosis. Etiology. Pathogenesis. Clinical features. Diagnostics. Treatment. Prevention.

1. What is the typical sites of scabies in adults?

1. The scalp;

2. The face and the neck;

3. The back;

4. Palms and soles;

5. The interdigital folds of hands.

2. What are the most typical signs of scabies?

1. The itching in the evening and at night;

2. Eczematization of the affected areas;

3. Complication by pyodermia in the affected areas;

4. Infiltration in sites of affection;

5. Polyadenitis.

3. What medicines are used for treatment of scabies?

1. 33 % Sulphur ointment;

2. 2 % salicylic ointment;

3. 20 % sulphur ointment;

4. “Nizoral” ointment;

5. Ointment with nystatin.

4. What is the most frequent complication of scabies?

1. Secondary pyodermia;

2. Sepsis;

3. Cicatricial atrophy of the skin;

4. Phlegmon;

5. All listed above.

5. Indicate characteristic lesions in case of not complicated scabies:

1. Maculae and pustules;

2. Pustules and tubercles;

3. Papules and vesicles;

4. Maculae and papules;

5. Vesicles and pustules.

6. What medicines are prescribed for treatment of scabies?

1. 33 % Sulphur ointment;

2. Wilkinson's ointment;

3. 20 % water-soap emulsion of benzyl benzoate;

4. 60 % sodium thiasulphate solution and 6 % solution of hydrochloric acid;

5. Aerosol “Spregal”.

7. What primary lesions are characteristic for scabies?

1. Vesicle;

2. Tubercle;

3. Papule;

4. Macula;

5. Wheal.

8. In case of treatment patients with scabies it is necessary:

1. To eliminate a spicy food;

2. To prescribe UVR;

3. To prescribe the sulphur ointment;

4. To prescribe antihistaminics;

5. To prescribe sedatives agents.

9. Papulopustular lesions on the extensor surface of the elbow joints at the scabies are called:

1. Koebner's phenomenon;

2. Gorchakov-Ardy sign;

3. Auspitz' sign;

4. Pospelov's sign;

5. Isomorphic reaction.

10. What are the routes of infection with scabies?

1. The sexual;

2. Through toys;

3. Through linen or bed;

4. Through animals;

5. By droplet transmission.

11. What lesions occur in patients with scabies?

1. The miliary papules;

2. The lenticular papules;

3. An excoriation;

4. Hemorrhagic crusts;

5. Tubercle.

12. What forms of scabies are distinguished?

1. The typical;

2. Diffusive;

3. Apruriginous;

4. The Norwegian scabies;

5. The general.

13. What features of course of scabies in children?

1. The localization of lesions on palms and soles;

2. The localization of lesions on face and scalp;

3. Occurrence of papules, vesicles and wheals;

4. The foci of affection appear over the entire skin surface;

5. Scabies frequently is complicated by pyoderma.

14. What most often scabies is complicated by?

1. Candidiasis;

2. Pyoderma;

3. Pediculosis;

4. Dermatitis;

5. Lymphangitis, lymphadenitis.

15. With what diseases a differential diagnosis of scabies has to be made?

1. Skin pruritus;

2. Psoriasis;

3. Lichen ruber planus;

4. Allergic dermatitis;

5. Eczema.

16. What the methods of treatment of scabies are distinguished?

1. Demyanovich's method;

2. 5 % salicylic ointment;

3. 33 % sulphur ointment;

4. Clotrimazol;

5. Benzil-benzoat.

17. What measures are considered preventive for the scabies prevention?

1. Timely diagnostics of scabies;

2. Examination of household contacts;

3. Preventive examinations;

4. Frequent washing of linen;

5. Sanitary-educational work.

18. What laboratory methods are used for diagnostics of scabies?

1. Extraction the itch mite by means of a needle;

2. Express method with use of lactic acid;

3. Bacteriological diagnostics;

4. Cutting with a razor blade of the burrows and papules;

5. Serological diagnostics.

19. What are the clinical features of the complicated scabies?

1. Polymorphism of lesions;

2. The presence of pustule;

3. Gorchakov-Ardy sign;

4. The absence of an itch;

5. The absence of mite burrows.

20. What lesions are considered as objective signs of scabies?