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3 years ago

Pernicious anemia produces red blood cells that are ________

1 answer:

5 0

Pernicious anemia produces red blood cells that are <u>large</u> and<u> vitamin B12</u> deficiency contributes to pernicious anemia.

Explanation:

When there is a lack of intrinsic factor, secreted in the parietal cells of the gastric mucosa or the stomach lining, vitamin B12 absorption from the stomach is affected.

Vitamin B12 is one of the key factors responsible for normal synthesis and maturation of fully functional red blood cells (RBCs).

The main function of the RBCs is to carry oxygen through hemoglobin to all parts of the body. In order to transport oxygen, the RBCs must be mature with normal shape (concave center and circular shape) and size.

When there is a lack of vitamin B12, the RBCs are not matured and immature, megaloblastic, large, irregularly-shaped red blood cells are formed and circulate in the blood. This also leads to macrocytosis of RBCs.

These cannot function as normal mature blood cells because of the irregular shape and cannot carry hemoglobin to transport oxygen.

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Which of these would be considered a public health program one injury and illness prevention in which EMS could participate?

alexandr402 [8]

A. CPR training is the one ems could participate

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4 years ago

the clinician is preparing to administer aaron's tube feeding through an open system that transfers the formula from a container

Tresset [83]

When using the tube feeding for Aaron, Do not allow the formula to hang in the feeding tube for more than 24 hours.

Tube feeding is a special kind of therapy that is used on patients who cannot consume food on their own. It is done to make sure that the patient, even though he or she can't eat food on their own, will get enough nutrients, which are necessary for their survival.

Usage of the feeding tube can be seen more often these days, especially in elders who have been worn down by old age, people who are treated after an unfortunate accident, and people who have been diagnosed with some serious disease.

Here, Aaron is being fed nutrients through a feeding tube because he might fall into any one of these categories.

To make sure that the formula of the nutrients that have been fed to Aaron using a feeding tube does not get contaminated, the clinician should not allow the formula to hang in the feeding tube for more than 24 hours.

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1 year ago

Bone cells are called:

Olenka [21]

Answer:

Bone is a mineralized connective tissue that exhibits four types of cells: osteoblasts, bone lining cells, osteocytes, and osteoclasts.

4 0

3 years ago

joja [24]

Recommended daily allowance (RDA) is the nutritional requirement and uptake of the food. One has to eat 7 oranges each week so as to meet the requirement.

RDA is the recommended daily allowance that defines the level of the essential nutrients that a person consumes for a healthy lifestyle that is defined by Food and Nutrition so as to meet the required nutrient amount.

Given,

RDA of vitamin C = 60 mg/day

100 gm orange = 70 mg Vitamin C

So for one week, it is calculated as:

7 × 60 = 420 mg

The vitamin C in 100 gm oranges = 0.0007 and 1 oz = 28.3495 grams.

So, 3 oz = 3 × 28.3495 grams = 85048.5 mg

The amount of vitamin C in 85048.5 mg is calculated as:

0.0007 × 85048.5 = 59.53 mg

Number of oranges to be consumed each week = 420 ÷ 59.53 =7

Therefore, 7 oranges must be consumed in a week.

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6 0

2 years ago

Certain biological determinants of health may increase a population’s risk of environmentally caused health problems.

Solnce55 [7]

Answer: b. The elderly have a higher risk from toxic pesticides because they are less able to eliminate environmental toxins.

Explanation:

The older adults are expected to have health problems after a pesticide exposure. This is because of the fact that their metabolism is slow and the liver and kidneys are not able to remove the pesticides from the body. The liver and kidney may get injured during the exposure of the high doses of pesticides.

The longer a pesticide stay in the body of an old person this may result in more severe injury. As the body is slow in metabolism that is the conversion of the chemicals in the pesticides into less toxic metabolites. Thus the elderly people will not be able to eliminate the toxin from the body. The toxin will damage the vital organs and can lead to death.

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3 years ago