NEET PG/NEXT (MCQs)

2021-05-22 18:00:06 Explanation

Order of appearance and disappearance (in sequence)
• Heart (left chamber in 1 hour)
• Eyelids (3-4 hours)
• Face muscles
• Neck and trunk
• Upper extremities
• Legs Open / Comment

2021-05-21 18:00:02 Explanation

Meningitis is the commonest intracranial complication of otitis media

In infants and children, otogenic meningitis usually follows acute otitis media while in adults, it is due to chronic middle ear infection

Most common organisms in infants and children are Streptococcus pneumonia(30%), H. infulenza (20%) and Moraxella catarrhalis (12%).

Streptococcus pneumoniae is also the most common cause of pyogenic meningitis in adults. Open / Comment

2021-05-20 18:00:01 Explanation

Rheumatoid arthritis leads to development of anemia of chronic disease

A more common presentation of anemia of chronic disease is normocytic normochromic anemia. In late presentation microcytic hypochormatic anemia is noted. Open / Comment

2021-05-19 18:00:02 Explanation

Carvedilol is a third generation beta blocker having blocking property of β1 + β2 + α1.

It produces peripheral vasodilation due to blocking property of α1 as week as L type calcium channel blocker.

Carvedilol also inhibits free radical induced lipid peroxidation

Other third generation beta blocker having similar property is labetalol. Open / Comment

2021-05-18 18:00:03 Explanation

Creatinine is formed in muscle from creatinine phosphate by irreversible, non enzymatic dehydration and loss of phosphate

Glycine, arginine and methionine all participate in creatine biosynthesis

Synthesis of creatine is completed by methylation of guanidionoacetate by S-adenosylmethionine. Open / Comment