OPSC:previous paper discussion


Koebner's phenomena are seen in
all the following EXCEPT:
(A) Lichen Planus
(B) Psoriasis
(C) Warts
(D) Pityriasis rosea


The correct answer is:

(C) Warts

Koebner phenomenon, also known as the Koebner response or isomorphic response, is a skin reaction where new skin lesions appear at the site of trauma or injury on the skin of a person with certain skin conditions. It's commonly seen in conditions like Lichen Planus, Psoriasis, and Pityriasis rosea. However, it is not typically associated with warts.




Dengue is spread by :
(A) Culex
(B) Anopheles
(C) Manonides
(D) Aedes

The correct answer is:

(D) Aedes

Dengue fever is primarily spread by the Aedes mosquito, particularly the species Aedes aegypti and, to a lesser extent, Aedes albopictus. These mosquitoes are responsible for transmitting the dengue virus from infected individuals to healthy individuals when they bite.



Lyre's sign in CT angiography is
seen in :
(A) Carotid body tumor
(B) Glomus tympanicum
(C) Glomus jugulare
(D) Branchial fistula

The correct answer is:

(C) Glomus jugulare

Lyre's sign refers to a characteristic appearance seen on CT angiography in cases of glomus jugulare tumors. Glomus jugulare tumors are rare, slow-growing tumors that arise from the paraganglia, which are clusters of specialized cells along blood vessels and nerves. The Lyre's sign refers to a serpiginous (snake-like) pattern of tumor vessels seen on imaging, which resembles the shape of a lyre (a musical instrument). This sign is often associated with glomus jugulare tumors located in the jugular foramen, a small opening in the skull through which important blood vessels and nerves pass.


The preferred anti hypertensive drug
for a 74 years old male with being
prostatic hypertrophy is:
(A) Amalodipine
(B) Hydrochlorothiazide
(C) Prazocin
(D) Atenolol


The preferred anti-hypertensive drug for a 74-year-old male with benign prostatic hypertrophy (BPH) would generally be:

(C) Prazosin

Prazosin is an alpha-1 adrenergic blocker that is often used to treat both high blood pressure (hypertension) and symptoms of benign prostatic hypertrophy (BPH). It can help relax the smooth muscles of the prostate and bladder neck, relieving urinary symptoms associated with BPH.

It's important to note that individual medical history, existing conditions, and other factors play a role in determining the best treatment option. A healthcare professional should be consulted to make a personalized recommendation based on the patient's specific situation.

BCG vaccination gives protection
against which disease?
(A) Chicken Pox
(B) Mums
(C) Tuberculosis
(D) Measles




The correct answer is:

(C) Tuberculosis

BCG (Bacillus Calmette-Guérin) vaccination provides protection against tuberculosis (TB), a bacterial infection caused by Mycobacterium tuberculosis. The BCG vaccine is commonly given to individuals in many parts of the world, especially in countries with a higher prevalence of TB. It helps prevent severe forms of tuberculosis in children, although its effectiveness in preventing all forms of the disease in adults varies and is limited. The BCG vaccine does not provide protection against chickenpox (varicella), mumps, or measles.



All of the following drugs exert an
antipyretic effect through inhibition of
cyclo-oxygenase, except:
(A) Prednisone
(B) Aspirin
(C) Celecoxib
(D) Ibuprofen

The correct answer is:

(A) Prednisone

Prednisone is a corticosteroid, and its antipyretic effects are not primarily achieved through the inhibition of cyclooxygenase (COX), which is the enzyme targeted by drugs like aspirin, celecoxib, and ibuprofen. Corticosteroids like prednisone have anti-inflammatory and immunosuppressive properties, and their mechanism of action in reducing fever is different from that of COX inhibitors.


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