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NEET MDS Shorts

29733
General Medicine

The pacemaker of the heart is the SA (sinoatrial) node. Located in the right atrium, it generates spontaneous electrical impulses at 60-100 beats per minute, initiating each heartbeat. It has the highest intrinsic firing rate, making it the natural pacemaker.

78604
General Medicine

Zollinger Ellison syndrome is characterized by the presence of a gastrin-producing tumor (gastrinoma) which leads to hypergastrinemia, resulting in excessive gastric acid secretion and subsequent peptic ulcers. Hyperacidity is not a separate component but rather a consequence of increased acid production due to hypergastrinemia.

50343
General Medicine

The most possible diagnosis is foreign body aspiration

83029
General Medicine

The nephrotic syndrome includes massive proteinuria, hypoalbuminemia, generalized edema, and hyperlipidemia with lipiduria. Neutrophiluria, the presence of neutrophils in the urine, is not a typical feature of the nephrotic syndrome and is more associated with conditions like acute glomerulonephritis or pyelonephritis.

59087
General Medicine

Alpha antitrypism deficiency causes panacinar emphysema

83037
General Medicine

CK-MB is the myocardial isoenzyme of creatine kinase specific for and raised after myocardial infarction. CK-MB is found predominantly in cardiac muscle and is released during myocardial necrosis. It peaks 12-24 hours after MI and normalizes within 2-3 days.

18200
General Medicine

Myocardial infarction most often results in mitral regurgitation. MI can damage papillary muscles or cause left ventricular dysfunction, leading to mitral valve incompetence. This is the most common valvular complication following MI, especially inferior wall infarcts.

65779
General Medicine

Untreated celiac disease leads to villous atrophy, where the finger-like projections of the intestinal mucosa become flattened, reducing the surface area for nutrient absorption.

78084
General Medicine

As opposed to lobar pneumonia, bronchopneumonia is characterized grossly and microscopically by patchy inflammatory distribution

78587
General Medicine

Hemophilia A is an X-linked recessive disorder, caused by a deficiency of factor VIII. Since the patient's mother is a carrier, she must have one defective X chromosome and one normal X chromosome. The patient, being a male, has a 50% chance of inheriting the disorder from his mother, which is the most likely scenario given the family history and the X-linked inheritance pattern. Hemophilia B is also X-linked but would be mentioned as Christmas disease if it were the correct answer. Hageman trait is an autosomal recessive disorder related to factor XII, which is less common than Hemophilia A and B.

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