Test 130  (Pathology)

1.  Absorbable sutures include:

a. silk

b. catgut

c. polyamide

d. polydioxanone

e. polyglactin
 

Answer
a.F   b.T   c.F   d.T   e.T
Silk and polyamide are not absorbable.

2. Neurofibromatosis:

a. is associated with bilateral acoustic neuroma 

b. is inherited in an autosomal dominant fashion

c. causes pulsatile exophthalmos

d. has no malignant potential

e. is associated with paroxysmal hypertension
 

Answer
a.T   b.T   c.T   d.F   e.T
About 3% of neurofibromatosis undergoes
malignant transformation. Pulsatile exophthalmos is caused by congenital absence of sphenoid wing. Paroxysmal hypertension is caused by 
phaeochromocytoma which has an increased incidence in neurofibromatosis.

3. The following promotes wound healing:

a. macrophages

b. myofibroblast

c. platelets

d. endothelial cells

e. apocrine cells
 

Answer
a.T   b.T   c.T   d.T   e.F

4. Sterilization by steam:

a. does not kill spores

b. occurs at a higher temperature than dry heat 
    sterilization

c. takes a longer time than dry heat

d. is ideal for sterilizing ointments

e. occurs at supra-atmospheric pressure
 

Answer
a.F   b.F  c.F   d.F   e.T
Steam readily transfer its latent heat to microbes 
and spores. It sterilizes instruments at a lower 
temperature and in a shorted time period than 
dry heat. The steam autoclave generate supra-atmospheric pressure for water to attain a temperature higher than its boiling point .

5. Regarding malignant melanoma:

a. is staged using the Clarke's level

b. carries good prognosis if the thickness is less than 
    1.00 mm deep

c. superficial spreading is the most common type

d. is associated with ultraviolet light exposure

e. systemic spread can be treated with BCG 
 

Answer
a.T   b.F  c.T   d.T   e.T
Thickness of less than 0.75 has the best prognosis.

 

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