True- an involuntary reflex is a reaction that happens when something else occurs. A involuntary reflex is something our body is “programmed” to do automatically.
Answer:
Common causes of blindness are diabetic neuropathy, glaucoma and cataracts.
Explanation:
Blindness refers to the complete lack of functional vision.It occurs when an inadequate amount of light hits the retina, or the information has not been delivered to the brain correctly.
Complete blindness : characterized by a complete and total loss of vision. Merck Manuals reports that legal blindness is defined as having equal to or worse than a 20/200 visual acuity in the better eye. Having a visual acuity of 20/200 means that someone with normal vision can see an object at 200 feet, and a person with impaired vision can see at a distance no further than 20 feet. Several different diseases can cause complete blindness; some develop later in life and some are present at birth. The leading cause of blindness in the United States is diabetes, according to the National Eye Institute. Diabetes causes diabetic retinopathy, which results in destruction of the retina. Other causes of complete blindness include age-related macular degeneration, which the National Eye Institute calls the most common cause of blindness in adults who are 60 or older; cataracts, which obstructs light from hitting the retina because of opaque patches on a lens; and glaucoma, which causes blindness due to damage to the optic nerve.
Color Blindness
:
People who have color blindness, also called dyschromatopsia, are unable to distinguish certain colors. This type of blindness more commonly affects men than women. Merck Manuals reports that the most common form of color blindness is red-green color blindness, which makes it difficult to distinguish certain shades of red and green. Color blindness is almost always present at birth, and is usually caused by the presence of a defective gene on the X chromosome. The reason that more men are affected by color blindness than women is that women have two X chromosomes; thus, even if they are "carriers" of a bad gene, their other X chromosome usually has a functional gene. Because men have only one X chromosome, the presence of one bad gene is sufficient to cause color blindness. Defective retinal cells result in some forms of color blindness; other forms are caused by defects in the optic nerve.
Night Blindness
:
Night blindness is vision impairment that occurs at night or when light is dim. It does not generally result in a complete lack of vision but significantly impaired vision. People with night blindness often have difficulty driving at night or seeing stars. Several different factors cause night blindness, according to the University of Maryland Medical Center. These factors include cataracts, birth defects, a vitamin A deficiency, or a retinal disease called retinitis pigmentosa
The Food and Nutrition Board recommends that Americans consume 45% to 65% of their total calories from carbohydrates.
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What are Carbohydrates ?</h3>
Carbohydrates are one of the macro nutrient found in foods that when consumed provide the body with energy acting as the body's main fuel source
There are three main types of carbohydrates:
- Sugar : which can be gotten from milk and milk sugar(lactose). fruit sugar (fructose), table sugar (sucrose)
- Starch. Which can be derived from vegetables, grains, and cooked dry beans and peas.
- Fiber. From fruits, vegetables, whole grains, and cooked dry beans and peas.
According to the Dietary Guidelines for Americans from The Food and Nutrition Board It is recommended that they consume 45 to 65 percent of their total daily calories from Carbohydrates.
Learn more here on recommended calories for carbohydrates here:brainly.com/question/4434064
Answer:
It it possible and is very lucky and should clear the area as it could go of and blow at any moment.
Explanation:
D) 6 p.m. to 8 p.m.
It is advised that patients receiving continuous tubes feedings irrigate their feeding tubes every 4 to 6 hours. The nurse would then irrigate the tube for this patient between 6 and 8 o'clock.
Feeding Tube- A tube that is put into the stomach through the nose, then down the neck and esophagus. It can be used to remove items from the stomach as well as to administer medications, liquids, and liquid food. Enteral nutrition refers to the feeding of food through a feeding tube to the stomach.
Nutrition- The process of consuming food and transforming it into energy as well as other essential elements is known as nutrition.
The given question is incomplete, find below the complete question,
Q. A patient is receiving a continuous tube feeding. The nurse notes that the feeding tube was last irrigated at 2 p.m. The nurse would plan to irrigate the tube again at which time?
A) 4 p.m. to 6 p.m.
B) 10 p.m. to 12 a.m.
C) 8 p.m. to 10 p.m.
D) 6 p.m. to 8 p.m.
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