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NEET MDS Quiz - Practice Test
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NEETMDS - 3 Questions

1
NEETMDS

Benzalkonium chloride belongs to which category of disinfectants
1) Phenolic compounds
2) Quaternary ammonium compounds
3) Biguanides
4) Essential oils

📝 Explanation:

Benzalkonium chloride belongs to the class of quaternary ammonium compounds, also known as QACs. These compounds work as disinfectants by disrupting the cell membranes of microorganisms, leading to cell leakage and death.

2
NEETMDS

Ulthoff sign is seen in:
1) Parkinsonism
2) Cerebral palsy
3) Multiple sclerosis
4) Alzheimers disease

📝 Explanation:

Uhthoff's phenomenon (or sign) is the temporary worsening of neurological symptoms in multiple sclerosis (MS) due to an increase in body temperature.

3
NEETMDS

Tuberous sclerosis is seen in

1) Vascular fibroma

2) Leprosy

3) Tuberculosis

4) Bone disorders

📝 Explanation:

Tuberous sclerosis is a genetic disorder that causes non-cancerous tumors to grow in the brain and other organs. One of its common cutaneous manifestations are facial angiofibromas, which are also referred to as vascular fibromas.

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