Physiology of TOF

Q . Which of the following has the greatest impact  on the physiology of tetralogy of Fallot?
A. The size of the ASD.
B. The size of the VSD.
C. The degree of pulmonary stenosis.
D. The amount of aortic overriding

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Ventricular Septal defect

Q. Which of the following statements about VSDs is wrong ?

A. Spontaneous closure occurs in 25-50%  of patients during  childhood.
B. Tachypnea and failure to thrive are symptoms frequently associated with  large VSDs.
C. Patients with normal pulmonary vascular resistance and left-to-right  shunting across the VSD have Eisenmenger’s complex.
D. Patients with a large VSD and low pulmonary vascular resistance can  present with a mid diastolic murmur at the apex.

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Natural Killer cells

Natural Killer Cells – Surgery MCQ with Answer

Natural Killer Cells – MCQ for Surgery & Immunology

Q) What are natural killer cells?

a) Multinuclear monocytes
b) Special macrophages
c) Antigen presenting cells
d) Large granular lymphocytes