Definitions. Postterm pregnancy is defined as pregnancy that has extended to or beyond 42 weeks of gestation (294 days), or estimated date of delivery (EDD) + 14 days (ACOG, 2004). The terms prolonged pregnancy, postdates and postdatism are synonymously used to describe the same condition. What are the risks ofRead More →
The most common causes of megaloblastic, macrocytic anemia are deficiency or defective utilization of vitamin B12 or folate. What does abnormally large red blood cells mean? Macrocytosis is a condition in which your red blood cells are larger than they should be. While it isn’t a condition of its own,Read More →
Ciguatera is a type of food poisoning. The ciguatera toxin may be found in large reef fish, most commonly barracuda, grouper, red snapper, eel, amberjack, sea bass, and Spanish mackerel. Can you get ciguatera from tuna? Some people may experience swelling in the throat and difficulty breathing due to spasmsRead More →
Adipsia is a disease characterized by the absence of thirst even in the presence of body water depletion or salt excess. It is a rare condition that typically presents as hypernatremic dehydration. The cause is usually a hypothalamic lesion, which can be congenital or acquired. How do you know ifRead More →
Visual phototransduction occurs in the retina through photoreceptors, cells that are sensitive to light. The membrane potential of a photoreceptor hyperpolarizes in response to light, causing a reduction in the amount of neurotransmitter released by the photoreceptor onto downstream neurons. Why are photoreceptors sensitive to light? 4.4. Photoreceptors are specializedRead More →
The north pole of a compass magnet points toward the north. … Earth’s south magnetic pole is near Earth’s geographic north. Earth’s magnetic north pole is near Earth’s geographic south. That’s why the north pole of a compass points toward north because that’s where Earth’s south magnetic pole is locatedRead More →
If your pancreas doesn’t make enough insulin or doesn’t make good use of it, glucose builds up in your bloodstream, leaving your cells starved for energy. When glucose builds up in your bloodstream, this is known as hyperglycemia. The symptoms of hyperglycemia include thirst, nausea, and shortness of breath. WhatRead More →
The Fading types are divided into large scale fading and small scale fading (multipath delay spread and doppler spread). Flat fading and frequency selecting fading are part of multipath fading where as fast fading and slow fading are part of doppler spread fading. What is fading write the types ofRead More →
Autonomic dysreflexia occurs when something happens to your body below the level of your injury. This can be a pain or irritant (such as tight clothing or something pinching your skin) or a normal function that your body may not notice (such as having a full bladder and needing toRead More →
Halos and glare can also originate in the retina, the thin lining in the back of the eye. If light can’t focus properly on the retina, you may begin to see halos and glare. Common eye problems that can cause halos and glare include: Nearsightedness (difficulty seeing things far away)Read More →