NEET PG/NEXT (MCQs)

2021-05-18 14:00:05 https://t.me/NEET_PG_NEXT_FMGE Open / Comment

2021-05-17 18:00:04 Explanation

While still in the ovary, the ovum is in the primary oocyte stage

Right before it is released from the ovarian follicle, its nucleaus divides by meiosis and a first polar body is expelled from the nucleus of the oocyte

The primary oocyte then become the secondary oocyte

In this process, each of the 23 pairs of chromosomes loses one of its partners, which becomes incorporated in a polar body that is expelled

This leaves 23 unpaired chromosomes in the secondary oocyte. It is at this time that the ovum, still in the secondary oocyte stage, is ovulated into the abdominal cavity. Open / Comment

2021-05-16 18:00:02 Explanation

Notochord is formed by epiblast cells and it provides central axis to the embryonic disc.
It induces the overlying ectodermal cells to become neuro-ectodermal cells and form the neural tube. Open / Comment

2021-03-26 18:00:17 Explanation

A urinalysis that is positive for blood does not distinguish between myoglobin and hemoglobin. A microscopic urine exam is necessary for definitive diagnosis.

In a patient with myoglobinuria, a microscopic evaluation will fail to show the presence of RBC casts or intact RBCs.

Gross myoglobinuria can lead to an abnormal coloration of the urine and is typically described as ‘Cola colored’.

Hematuria and renal cell carcinoma would be expected to produce urine analysis and microscopic exam that are positive for RBCs, whereas nephritic syndrome would be expected to have RBC casts. Open / Comment

2021-03-25 18:00:17 Deficiency manifestations of miamine/Vit B1: Beri Beri. Early symptoms include anorexia, dyspepsia, heaviness and weakness.

Wet Beri Beri:
• Most prominent are CVS manifestations
• Main features are edema of legs, face, trunk and serious cavities.
• Other findings include palpitations, breathlessness and distended neck veins.
• Death due to heart failure

Dry Beri Beri:
• Major features are CNS manifestations
• Peripheral neuritis with sensory disturbance may cause complete paralysis

Infantile Beri Beri:
• Seen in infants born to mothers suffering from thiamine deficiency
• Restlessness and sleeplessness are also seen. Open / Comment