what causes blindness

Answers

Answer 1
- uncorrected refractive errors.
- cataract.
- age-related macular degeneration.
- glaucoma.
- diabetic retinopathy.
- corneal opacity.
- trachoma.
global reasons
Answer 2
The leading causes of blindness and low vision in the United States are primarily age-related eye diseases such as age-related macular degeneration, cataract, diabetic retinopathy, and glaucoma. Other common eye disorders include amblyopia and strabismus.

Related Questions

A 1-year-old child has been prescribed digoxin to treat heart failure (hf). when would the nurse plan on withholding the prescribed dose of the medication?

Answers

The nurse should plan on withholding the prescribed dose of the medication if the child's heart rate is more than 100 beats per minute.

What is Heart Rate?

Heartbeat rate is the frequency of heartbeats per minute, which is a measure of how quickly the heart beats (bpm). The heart rate is influenced by a variety of factors, including but not limited to genetic factors, physical conditioning, stress or psychological functioning, diet, drugs, hormonal factors, environment, disease or illness, as well as the interplay between and among these factors.

The heart rate can change depending on the body's physical needs, which include the requirement to absorb oxygen and expel carbon dioxide. The pulse recorded at any distal point is typically equal to it or very similar to it.

According to the American Heart Association, an adult's normal resting heart rate ranges from 60 to 100 bpm. High heart rate, or tachycardia, is described as being over 100 bpm while at rest. Low heart rate is known as bradycardia.

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Gabe just won the lottery after ten years of consistently buying a ticket every friday. based on his initial reaction of feeling joyful, what might happen to gabe’s cortisol level within his body? a. cortisol level would interfere with insulin production b. there would be no change in level of cortisol c. cortisol level would most likely increase d. cortisol level would most likely decrease please select the best answer from the choices provided a b c d

Answers

Answer:

Based on Gabe's initial reaction to feeling joyful, his cortisol level within the body is most likely to be increased. So the correct answer is C.

Explanation:

Cortisol is a stress hormone that is secreted from the adrenal medulla. It has a circadian rhythm of secretion in a regular person which is observed to have a peak secretion in the morning.

When there is a flight and fight response in the body this hormone level might be increased. Overexcitement is too a flight and fight response. Thus there should be increased cortisol levels.

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What is the priority nursing intervention in helping a patient expectorate thick lung secretions?

Answers

Answer:

Although several interventions may help the patient expectorate mucus, the highest priority should be on increasing fluid intake, which will liquefy the secretions so that the patient can expectorate them more easily. Humidifying the oxygen is also helpful, but is not the primary intervention. Teaching the patient to splint the affected area may also be helpful, but does not liquefy the secretions so that they can be removed.

The nurse is instructing a 4-year-old child about an upcoming procedure. what approach should the nurse employ during teaching?

Answers

The approach a nurse shy employ during teaching a 4-year-old child about an upcoming procedure is to use pictures and songs to explain to the child.

It is very important to understand children at this age four cannot understand big grammars and vocabularies untill they reach the age of about nine to twelve. So when teaching a child of four years old, it is expected to use pictures to explain to them what message you want to convey to them.

They also understand what you teach them using song.

It also very important to be honest with children when teaching them.

Nursing care about children

The aspect of medicine which deals with dealing with health conditions of children is called paediatrics.

So therefore, the approach a nurse should employ during teaching a 4-year-old child about an upcoming procedure is to use pictures and songs to explain to the child.

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Explain how Naomi's decision in question 2 demonstrates a pre-conventional, conventional, or post-conventional level of moral reasoning in complete sentences.

Answers

Naomi's decision demonstrates a post-conventional level of moral reasoning as a result of her not caring about the reward of money and other material things.

What is Post-conventional level of moral reasoning?

This is referred to as the final stage of Kohlberg's model of moral reasoning and it is characterized by an individual being able to make choices and decisions which are different from the norm in the society.

The social norm for reward when a task has been done is collection of money and other material resources as incentives but in the case of Naomi she was not interested in the incentives which were available.

This is part of her belief and is a deviation from the societal norm which is therefore the ways in which she demonstrated a post-conventional level of moral reasoning.

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Which statement is true about a person who is in good social health? a. She spends a lot of time alone. b. She has few friends at school. c. She may not be in good physical health. d. She gets along with others.

Answers

The statement which is true about a person who has a good social health is d. she gets along with others.

Social health the capacity of an individual to manage and behave under various social circumstances. Healthy relationships with other people entail open communication, empathy, and consideration for one's family, friends, and coworkers.Illustrations of good social health include:Joining neighborhood and community events.Acquiring good communication skills.Being authentic.Avoiding toxic people and environments.Not isolating oneself.Going out and mingling with people.Examples of the social determinants of health, which have both positive and negative effects on health equity, are given below:Earnings and social security.Education.Unemployment and unstable work.Working environment.Insecurities regarding food.Housing, the environment, and necessities.Enhance social wellbeing through the following ways:Be in the company of moral people. Your general well-being is positively impacted by having a robust support network.Exercise self-care.Take part in extracurricular activities and hobbies.Maintain a regular, healthy schedule.Maintain your efforts to improve communication.

Hence, the correct answer is d. she gets along with others.

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Which element of the leadership quality of decision making gives the registered nurse a legitimate power to give commands and make final decisions specific to a given position?

Answers

The legitimate power to issue commands and make final decisions specific to a given position is referred to as authority.

The registered nurse has the legal ability to issue orders and reach decisions that are specific to a given position thanks to the authority component of the leadership quality of decision making.

The nurse is exercising his/her authority by requesting the assistance of a dietician, which is a formal legitimate power to make final decisions that are specific to a given position. Autonomy refers to the ability to make decisions about a patient's specific care plans.

A good nurse leader is frequently compassionate and empathetic, which aids in understanding and assisting others. These qualities can be used by nurse leaders not only when working with patients, but also when working with and training other nurses.

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Helena works out at a health club, goes to yoga classes, and reads magazines about women’s health to satisfy her inner desires. Which of maslow’s needs is wendy fulfilling?.

Answers

Helena works out at a health club, goes to yoga classes, and reads magazines about women’s health to satisfy her inner desires. Helena is fulfilling the esteem need of Maslow's needs.

Abraham Maslow came forward with discussing human's innate curiosity under which he made five divisions. The hierarchy of Moslow's needs includes physiological needs, the need for love, the need for esteem, self-actualization, and security.

Such a need in which a person tries to empower himself and focuses on building his inner self-respect comes under esteem needs.  Going of Helena to a health club for maintaining fitness, her reading magazines and attending yoga classes are all done in order to satisfy her esteem.

Maintenance of self-esteem helps in making a person feel better about himself. A person decides on his own set of activities in order for building self-esteem.

Although there is a mistake in your question, you might be referring to this question:

Helena works out at a health club, goes to yoga classes, and reads magazines about women’s health to satisfy her inner desires. Which of Maslow's needs is Helena fulfilling?

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Describe the structure of heart with the help of labelled diagram.​

Answers

Answer:

The heart wall is made up of three layers: The outer layer of the heart wall is called epicardium. The middle layer of the heart wall is called myocardium. The inner layer of the heart wall is called endocardium.

Explanation:

Which of the following is NOT a condition required by the government to label food "organic"?
A contains 95% organic ingredients
B animals must have access to the outdoors
pesticides
C produced without conventional
D. crop must be harvested by hand
Please select t
08
Save and Exit

Answers

Answer:

D. crop must be harvested by hand

WHat are the two groups called? control and experimental experimental and solution

Answers

In an experiment, the two groups are called the

Control groupexperimental group

What are control groups?

The control group can simply be described as the group in an experiment that does not receive the variable under test.

The experimental group is the group that receives the variable under test in an experiment.

The two groups in any experiment are the control group and experimental group.

The control group and experimental group are compared against each other in an experiment.

The only difference between the control and experimental groups is that the independent variable is changed in the experimental group, while the independent variable is held constant in the control group.

In conclusion, all experiments must contain an experimental group but not all will contain a control group.

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If a patient declines treatment the physician may override their decision if it is in the patient’s best interest

Answers

Answer:

True

Explanation:

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Which nursing action is appropriate to improve nutrition for a patient with cancer?

Answers

(o_ _)ノ彡☆

use alternative seasonings and spices to help

The nurse is providing discharge teaching for a client newly diagnosed with type 2 diabetes mellitus who has been prescribed metformin. which client statement indicates the need for further teachin?

Answers

⁽⁽ଘ( ˊωˋ )ଓ⁾⁾

You need to constantly watch for signs of low blood sugar.

(metformin lowers blood sugar after a meal as well as fasting blood glucose levels. Metformin does not stimulate insulin release therefore poses little risk for hypoglycemia; clients can skip a meal now and then.)

What are the social and physical obstacles that you encounter and have to overcome to exercise regularly?.

Answers

For the physical aspect, you’d likely have to build up stamina to workout regularly, and a certain schedule to attempt to stick to would be beneficial. In addition, eating healthily would give you the energy to workout. Socially, people who are bigger or are beginners in the gym may feel they are being watched/judged, they’d have to break free from the care that they may be watched and/or judged.

A nurse is caring for a client with an external condom catheter. which guideline should be implemented when applying and caring for this type of catheter?

Answers

A nurse is caring for a client with an external co-ndom catheter and the  guideline which should be implemented when applying and caring for this type of catheter is to fasten the co-ndom securely enough to prevent leakage without constricting the blood vessels.

A catheter is a tube that's inserted into your bladder, permitting your body waste to empty freely. the foremost common reasons for using a tubing are: to rest the bladder following an episode of retention. To rest the bladder once surgery – most typically bladder, viscus or tract surgery.

A co-ndom catheter is a urine (pee) assortment device that fits like a condom over the pe-nis, however conjointly includes a tube that goes to a group bag strapped to your leg.

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A client with diabetes mellitus has a blood glucose level of 50 mg/dl (2.85 mmol/l) and reports feeling hungry and shaky. which should the nurse provide the client?

Answers

The nurse should provide 4 oz of apple juice to  the client with diabetes mellitus has a blood glucose level of 50 mg/dl (2.85 mmol/l) and reports feeling hungry and shaky.

What is  diabetes mellitus  ?

Diabetes mellitus is a group of disorders that modify how the body uses blood sugar (glucose). Glucose is a major energy source for the cells that make up the muscles and tissues. It acts as the brain's main source of fuel. The major causes of each kind of diabetes vary.

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Question:

A client with diabetes mellitus has a blood glucose level of 50 mg/dL (2.85 mmol/L) and reports feeling hungry and shaky. Which should the nurse provide the client?

(a)3 oz of 2% milk

(b)4 oz of apple juice

(c)2 oz of orange juice

(d)A teaspoon of granulated sugar

A pediatric client has just been diagnosed with diabetes insipidus. what is the primary consideration for this client?

Answers

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fluid replacement

Explanation:

Children with diabetes insipidus lose tremendous amounts of fluid, so fluid replacement is the priority consideration for this client. Excessive fluid loss can lead to seizures and death. Headache and polydipsia can be relieved with fluid replacement. Children will requirement a nutritional consultation for weight loss, but it is not the main consideration.

Name two benefits that result from regular exercise.

Answers

Answer:

Muscle strength & physical health

Answer:

Muscle strength and also physical health

Explanation:

A nurse must change the linens on a bed while it is occupied. which actions should the nurse take? select all that apply.

Answers

The action which the nurse take in order to change the linens on a bed while it is occupied is to help the client turn toward the opposite side of the bed and fan-fold soiled linens as close to the client as possible.

The correct answer choice here is option A

In order words, for a well trained nurse to to change the linens on a bed while it is occupied by a client or patient, the nurse should encourage the client turn toward the opposite side of the bed and fan-fold soiled linens as close to the client as possible.

What is nursing care?

Nursing care simply refers to all the healthcare practices given in the health center to improve the well being of a patient.

This care also include

Treatment of infectionsCleaning the the health environmentPreventive medicine

So therefore, the action which the nurse take in order to change the linens on a bed while it is occupied is to help the client turn toward the opposite side of the bed and fan-fold soiled linens as close to the client as possible.

The correct answer choice here is option A

Complete question:

A nurse must change the linens on a bed while it is occupied. Which actions should the nurse take? Select all that apply.

a. Help the client turn toward the opposite side of the bed and fan-fold soiled linens as close to the client as possible.

b. Put on gloves before removing soiled linens.

b. Place a bath blanket over the client.

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Air quality is important to both human health and overall environmental quality. True or false?.

Answers

Answer:

true

Explanation:

hope this helped

This statement is true because we need clean air for our lungs and plants also need clean oxygen

In which way does nicotine cause addiction?

Answers

Answer:

Nicotine releases chemical called dopamine in brain in the same region as other addictive drugs. Nicotine causes mood altering which makes the individual feel good for the time being.

nicotine releases a chemical called dopamine in the same regions of the brain as other addictive drugs. it stimulates receptors in your brain to release dopamine triggering a sort of pleasure response

In which order should the nurse perform an abdominal assessment for a client with a suspected bowel obstruction?

Answers

This sequence: inspection, auscultation, percussion, and palpation.  order should the nurse perform an abdominal assessment for a client with a suspected bowel obstruction.

The patient is positioned supine on a bed or examination table to examine the abdomen. Small pillows or folded sheets should be used to support the head and knees to make them more comfortable and to ease the musculature of the abdominal wall. Bowel sounds produced by normal peristalsis may be changed or eliminated by illness. An effective method for assessing abdominal tenderness is percussion.  Localized discomfort may indicate peritoneal or intrabdominal inflammation;It is best to do the three steps of palpation in the same order: superficial or light palpation, deep palpation, and organ palpation. Abdominal palpation also includes motions tailored to particular disorders.

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What is the correct spelling of a term for a deformity due to abnormal twisting of the foot?

Answers

Correct spelling of a term for a deformity due to abnormal twisting of the foot is clubfoot.

What do you mean by clubfoot?

A frequent foot deformity in which the foot points downward and inward is referred to as clubfoot or talipes equinovarus (TEV). It affects the foot and lower leg and is present at birth. In males, it occurs 2:1 more frequently than in females. It can affect either or both feet (bilateral in 50%). There is a 1 in 1,000 probability that a kid may be born with clubfoot to parents who have no personal or family medical history of the condition.

However, if they already have a child with clubfoot, there is a 3% (3 in 100) risk that their subsequent offspring will also have the condition. A child with clubfoot has a 20–30% risk of inheriting it from parents who themselves have the condition. This requires extensive care and treatment starting as early as 1 week old and continuing until 4-5 years old or beyond in some circumstances.

Various degrees of stiff, inflexible, and foot symptoms. Achilles tendon (heel cord) that is short and/or tight and the foot is pointed downward. Turning inward is the heel. Wide front foot area, soft, puffy heel-pad, deep heel crease, and overall smaller foot

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The nurse understands that which cells circulate throughout the body looking for virus-infected cells and cancer cells?

Answers

Natural Killer Cell circulate throughout the body looking for virus-infected cells and cancer cells.

What are natural killer cell?

Normal executioner cells, otherwise called NK cells or huge granular lymphocytes (LGL), are a kind of cytotoxic lymphocyte basic to the natural safe framework that have a place with the quickly growing group of known inborn lymphoid cells (ILC) and address 5-20% of generally flowing lymphocytes in people.

The job of NK cells is closely resembling that of cytotoxic Lymphocytes in the vertebrate versatile safe reaction. NK cells give fast reactions to infection contaminated cell and other intracellular microbes acting at close to 3 days after disease, and answer cancer arrangement.

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Ollie's family is heading out for their monthly fast-food night. Which of these would be the BEST option for the health-conscious family?

Question 1 options:

cheese pizza with garlic knots


fried cheese and bean empanadas


Big Mac and fries


California roll

Answers

I think it would be the California roll because it is most nutritious compared to the other foods on the list

2 questions need answers hurry

1. Where is the origin of the pectoralis?

A.sternum

B.ulna

C.humerus

D.abdomen

2.. What period of muscle contraction is the time in which the tropomyosin is pulled away and calcium has connected with the troponin?

A.synergist period

B.latent period

C.waiting period

D.tetanus period

Answers

The origin of the pectoralis is the sternum; option A.

The latent period is the period of muscle contraction is the time in which the tropomyosin is pulled away and calcium has connected with the troponin; option B.

What is the pectoralis?

The pectoralis is set of muscles found in the chest that connect the front walls of the chest with the upper arm bone and the shoulder bone.

The pectoralis consists of two muscles:

the pectoralis major, and The pectoralis minor

The pectoralis major is fan shaped muscle found underneath the breast tissue and forms the anterior wall of the axilla.

It is the largest and most superior most muscle of the anterior chest wall.

The pectoralis minor is a triangular shaped muscle that is located under the pectoralis major, and which together with the pectoralis major, form the anterior wall of the axilla.

Muscle contraction occurs in three phases:

the latent period,the contraction phase, andthe relaxation phase

The latent period is a short delay period from the time when the action potential reaches the muscle until tension can be observed in the muscle.

During this time, calcium diffuses out of the sarcoplasmic reticulum (SR), binds to troponin, tropomyosin moves out of the active sites, cross bridges are formed, slacks found in the muscle are removed.

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Which labs would the nurse expect the healthcare provider (hcp) to order?

Answers

BUN, Serum creatinine, Urine specific gravity and osmolality and Liver function panel are the lab tests that are ordered by the nurse.

What are laboratory diagnostic tests?

A small amount of blood, urine or bodily tissues is examined in a laboratory setting. The test samples are examined by a specialist or your doctor to see whether your findings are within the usual range. Because what is normal varies from person to person, the tests employ a range. Test outcomes are impacted by several variables. These consist of:

Age, gender, and racedietary and hydration routinesMedicinesObeyed pre-test guidelines

Additionally, your doctor could contrast your outcomes with those of earlier testing. In order to monitor changes in your health, laboratory tests are frequently included in a normal visit. They also assist medical professionals with illness monitoring, treatment planning, and evaluation.

Therefore, the nurse can order BUN, Serum creatinine, Urine specific gravity and osmolality and Liver function panel.

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Which is a health habit?

Answers

Answer: Healthy habit | definition of healthy habit by medical dictionary healthy habit A behavior that is beneficial to one’s physical or mental health, often linked to a high level of discipline and self-control

Explanation:

Eating right and exercising and getting enough sleep every day

rewrite the following in order from largest to smallest (muscle fiber, skeletal muscle, muscle fascicle, myofibril)

Answers

Muscle fiber- muscle cell.

Myofilaments- contractile proteins actin and myosin

Sarcomere- smallest contractile unit in striated muscle

Myofibril- organelle within a muscle cell made up of repeating sarcomeres.

The smallest structural and useful subunits of skeletal muscle are myofibrils that lie parallel to the lengthy axis of the muscle fiber. Myofibrils are composed of a sequence of sarcomeres polarized thin filaments and bipolar thick filaments. the appropriate order of systems of a muscle from smallest to largest is muscle fiber, endomysium, fascicles, perimysium, and epimysium.

The sarcomere is the smallest practical unit of skeletal muscle fiber and is a pretty organized association of contractile, regulatory, and structural proteins. Epimysium is The outermost layer of tissue that surrounds the entire muscle. Perimysium The center layer surrounds bundles of muscle fibers. Endomysium is The innermost layer surrounding individual muscle fibers. There are three layers of connective tissue: epimysium, perimysium, and endomysium. Skeletal muscle fibers are prepared into agencies referred to as fascicles.

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(PLEASE HELP IF SOMEBODY KNOWS THE STORY "THE INTERLOPERS") According to Section 4, Ulrich in the forest is due to his enemy's presence.Ironically, the end of the story reveals which of the following as the real cause of the roebucks' running "like driven things"?A. The intense stormB. The presence of huntersC. The presence of wolves Examine the diagram below.Which of the following statements is true of the above graph? A. An object is moving at a variable speed away from the origin. B. An object is standing still at a distance of 6 meters from the origin. C. An object is standing still on the origin. D. An object is moving at a constant speed of 6 m/s away from the origin.Please help- I'm already failing this subject 2.4.3 Test (CST): Get Your Motor RunningQuestion 14 of 25When drawing a vector, you should represent the magnitude of the vector bythe length of the arrow.OOA. TrueB. FalseSUBMIT 3. 0.5b +4=2(b-2) (1 point)O10O5Ono solutionO identity Which expression is NOT equivalent to 60+20A 10(6+2)b 5(12+4)c2(30+10)d 10(6+1) Calculate (7.15 x 10^9) - (4.56 x 10^8).2.59 x 10^12.59 x 10^96.694 x 10^86.694 x 10^9 Kaylee deposits $500 into a savings account with a 3% intrest rate what will her balance be in 3 years A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below:Spinner ResultsColor FrequencyRed 19Blue 20Green 14Yellow 8Purple 10Based on these results, express the probability that the next spin will land on blue or green or purple as a fraction in simplest form. Identify the like terms in the list.16y ^6, 2y^ 5, 4y ^2, 10y, 16y^ 2 can someone please tell me what 383.0 divided by 90 is????????? In one to two sentences, explain what can be found on a political map. The critical evaluation of websites allows users to identify _______. a. websites displaying information b. their favorite websites c. popular websites d. websites containing false or misleading information please select the best answer from the choices provided a b c d Pls help! Slope Question Juan wants to jump in and clarify when he occasionally hears statements about Stone Age humans, such as they discovered fire or found tools. He thinks comments like these are oversimplified. What is the MOST likely reason Juan feels the comments are oversimplified? A. Fire is a natural element, but tools definitely are not. B. Culture then was so basic that these discoveries were revolutionary. C. Any true discovery marks an important milestone in human history. D. They did not discover or find, they applied natural elements to their use. A nurse is preparing to administer medications. which patient would the nurse consider to have the greatest predisposition to an adverse reaction? Scientists have explained how amino acids, carbohydrates, nucleic acids, and fatty acids could all have been synthesized on Earth before living organisms appeared. Which of the following discoveries would MOST support the claim that life spontaneously generated from these biochemicals? A jogger takes 3.5 min to run once around a square block that is 220 m on each side. What is the joggers average velocity? An isotonic environment outside a cell has _______% salt, the same as the inside of the cell. One fitness magazine suggested that the food that you eat is like a battery because it has energy. Do you think that the banana that Mila ate had energy? Explain why you think this. A sample of 15 Girl Scouts was selected and their weights (in pounds) were recorded. The results are listed below. Construct a frequency histogram for the data using a class width of 10 and using 95 as the lower limit of the first class.97 120 137 124 117108 134 126 123 106130 110 100 120 140