EACA in Hemophilia Mechanism of Action

# Epsilon aminocaproic acid (EACA) is one of the agents useful in the treatment of haemophilia A. Mechanism of action of EACA is:
A. It is rich in factor VIII, which is deficient in hemophilia
B. Antifibrinolytic activity
C. It accelerates the coagulation process which is delayed in hemophilia
D.By unknown mechanism

The correct answer is B. Antifibrinolytic activity.

The main action of epsilon aminocaproic acid (EACA) is by its antifibrinolytic activity.

EACA is replaced by tranexamic acid, because of its more potent and longer acting properties and less side effects.

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MCQs on Hand Instruments and Instrumentation - Conservative Dentistry and Endodontics

# Which of the following is not true about hand instruments used in operative dentistry?
A. They are generally made of stainless steel
B. Nickel-cobalt-chromium is never used in its fabrication
C. Carbon steel is more efficient than stainless steel
D. It can be made with stainless steel with carbide inserts

# Most of the hand cutting instruments are made up of:
A. Chromium cobalt
B. Carbon steel
C. Tungsten carbide
D. Stainless steel

MCQs on Cariology : Diagnosis and Treatment Planning

# Which of the following is true of caries?
A. It is infectious and transmissible
B. Non infectious but transmissible
C. Multifactorial, transmissible but not infectious
D. Not multifactorial, not transmissible

# Which of the following microorganisms are associated with the active progression of cavitated lesions?
A. Mutant Streptococci
B. Streptococcus ferus
C. Lactobacilli
D. Streptococcus rattus

Cleansable dentin

# Slow caries leading to formation of black, hard, cleansable dentin is called as:
 A. Reparative dentin
 B. Secondary dentin
 C. Eburnated dentin
 D. Arrested dentin

The correct answer is C. Eburnated Dentin.

An arrested dentinal lesion typically is 'open', dark and hard, and this dentin is termed as sclerotic or eburnated dentin.

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