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NEET MDS Shorts

52818
General Medicine

The treatment of choice for growth hormone deficiency in children is recombinant human growth hormone (HGH) replacement therapy. This therapy helps to stimulate growth and can help children with growth hormone deficiency reach a more normal height. The other options listed are treatments for different hormonal imbalances and are not typically used for growth hormone deficiency unless there is a coexisting condition requiring them.

47406
Oral Surgery

Gate Control Theory (Melzack and Wall, 1965): Pain signals from small fibres (A‑delta and C fibres) travel to the dorsal horn of the spinal cord. These signals can be modulated by input from larger fibres.

A‑delta fibres: Small, thinly myelinated fibres that transmit sharp, pricking pain. They tend to open the gate (facilitate pain transmission).

C fibres: Small, unmyelinated fibres that transmit dull, aching pain. They also open the gate.

Large diameter A‑beta fibres: Myelinated fibres that carry touch, pressure, and vibration sensations. Their activation stimulates inhibitory interneurons in the dorsal horn, which close the gate and reduce pain transmission. This explains why rubbing or massaging an injured area can lessen pain.

B fibres: Preganglionic autonomic fibres, not directly involved in pain gate modulation.

94073
Physiology

The corticospinal tract primarily terminates on alpha-motor neurons and interneurons, not directly on delta-motor neurons, which are involved in the control of muscle spindles and not in direct motor control.

41757
General Pathology

Asymmetric arthritis is not a typical symptom of rheumatoid arthritis; it usually presents as symmetric polyarthritis.

83878
General Pathology

Conjunctivitis is often associated with Sjögren's syndrome, which can cause oral mucosal swelling and xerostomia.

96049
General Medicine

Anti-Smith (anti-Sm) antibodies are highly specific for SLE and are found in about 20-30% of patients. While antinuclear antibodies and anti-double stranded DNA antibodies are also associated with SLE, they are less specific as they can also be present in other conditions.

80618
INI CET

Lactic acid, Glucagon, and Epinephrine (generally) tend to increase extracellular potassium. Atropine, a muscarinic acetylcholine receptor antagonist, is associated with a decrease in extracellular K+ levels. The exact effect of these substances can be influenced by dose and physiological state.

18191
NEETMDS

Cardiac conditions requiring prophylaxis include prosthetic cardiac valves, previous infective endocarditis, congenital heart disease, and cardiac transplantation recipients with valvulopathy. Prophylaxis is needed for procedures involving manipulation of gingival tissue or periapical regions.

35540
Endodontics

The most generally accepted treatment of horizontal root fracture in the apical third of a maxillary central incisor involves frequent pulp testing and radiographic examination (monitoring approach). This conservative approach is preferred because: 1) Apical third fractures have excellent prognosis for natural healing, 2) Pulp often remains vital and functional, 3) Splinting may not be necessary as the fracture is inherently stable, 4) Regular monitoring allows early intervention if complications arise, 5) Surgical intervention or extraction is rarely needed. The healing usually occurs with fibrous tissue union.

57640
Dental Materials

Platinized gold foil is a combination of gold and platinum where 15% of the content is platinum. It is produced by rolling layers of gold and platinum together to achieve the desired thickness and distribution of the platinum within the gold foil. This process creates a homogeneous mixture that enhances the hardness and wear resistance of the restoration, making it suitable for high-stress areas like incisal edges and cusp tips.

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