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Masja [62]
3 years ago
10

Which statement correctly describes gas exchange? Gasses are exchanged in the venules. Gasses are exchanged at tissue level. Gas

ses are exchanged across the alveolar membrane. Gasses are exchanged directly from the blood to the air.
Health
1 answer:
densk [106]3 years ago
7 0

Answer: Gasses are exchanged across the alveolar membrane.

The exchange of gasses takes place across the alveolar membrane of the lungs. Our respiratory system are composed of nose, pharynx, larynx, trachea, bronchi, and lungs (alveoli) where gas exchanges between the blood and external environment by diffusion. Moreover, during the gas exchange, the oxygen enters the blood while carbon dioxide enters the alveoli.  


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When you are sheltered from harm, your ______ need is being satisfied?
faust18 [17]

Answer:

I would say B) Safety

Explanation:

Maslow's Hierarchy of Needs? Then it should be safety since you are being sheltered from harm, making you safe. Physical needs maily involve the basics, like food or water.

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Select the correct answer. Which activity will create tension in the legs? A. stretching your legs before a run B. standing for
Schach [20]

<u>Answer</u>:

Squatting to a pet dog before a run will activity create tension in the legs.

<u>Explanation</u>:

Tension in muscle contraction generates tension in the muscle fibers. In natural movements of locomotion the muscle contractions produce changes in length and tension in the muscle fibers of skeletal muscle. The sliding of protein filaments past to each other inside skeletal muscle fiber produces a contraction.

When the muscles is stretched or shortened beyond its normal level a tension which resist the change in the muscle length is felt. Among the above mentioned options the maximum tension can be observed in the following order:  squatting to pet a dog > stretching your legs before a run > pressing a car's accelerator pedal > standing for five minutes (no active tension).

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3 years ago
The presence of ketones is often high in the urine of both diabetics and people who suffer from anorexia. What urine characteris
Solnce55 [7]

Answer:

What is a ketones in urine test?

The test measures ketone levels in your urine. Normally, your body burns glucose (sugar) for energy. If your cells don't get enough glucose, your body burns fat for energy instead. This produces a substance called ketones, which can show up in your blood and urine. High ketone levels in urine may indicate diabetic ketoacidosis (DKA), a complication of diabetes that can lead to a coma or even death. A ketones in urine test can prompt you to get treatment before a medical emergency occurs.

Other names: ketones urine test, ketone test, urine ketones, ketone bodies

What is it used for?

The test is often used to help monitor people at a higher risk of developing ketones. These include people with type 1 or type 2 diabetes. If you have diabetes, ketones in urine can mean that you are not getting enough insulin. If you don't have diabetes, you may still be at risk for developing ketones if you:

Experience chronic vomiting and/or diarrhea

Have a digestive disorder

Participate in strenuous exercise

Are on a very low-carbohydrate diet

Have an eating disorder

Are pregnant

Why do I need a ketones in urine test?

Your health care provider may order a ketones in urine test if you have diabetes or other risk factors for developing ketones. You may also need this test if you have symptoms of ketoacidosis. These include:

Nausea or vomiting

Abdominal pain

Confusion

Trouble breathing

Feeling extremely sleepy

People with type 1 diabetes are at a higher risk for ketoacidosis.

What happens during a ketones in urine test?

A ketones in urine test can be done in the home as well as in a lab. If in a lab, you will be given instructions to provide a "clean catch" sample. The clean catch method generally includes the following steps:

Wash your hands.

Clean your genital area with a cleansing pad. Men should wipe the tip of their penis. Women should open their labia and clean from front to back.

Start to urinate into the toilet.

Move the collection container under your urine stream.

Collect at least an ounce or two of urine into the container, which should have markings to indicate the amount.

Finish urinating into the toilet.

Return the sample container as instructed by your health care provider.

If you do the test at home, follow the instructions that are in your test kit. Your kit will include a package of strips for testing. You will either be instructed to provide a clean catch sample in a container as described above or to put the test strip directly in the stream of your urine. Talk to your health care provider about specific instructions.

Will I need to do anything to prepare for the test?

You may have to fast (not eat or drink) for a certain period of time before taking a ketones in urine test. Ask your health care provider if you need to fast or do any other type of preparation before your test.

Are there any risks to the test?

There is no known risk to having a ketones in urine test.

What do the results mean?

Your test results may be a specific number or listed as a "small," "moderate," or "large" amount of ketones. Normal results can vary, depending on your on your diet, activity level, and other factors. Because high ketone levels can be dangerous, be sure to talk to your health care provider about what is normal for you and what your results mean.

Learn more about laboratory tests, reference ranges, and understanding results.

Is there anything else I need to know about a ketones in urine test?

Ketone test kits are available at most pharmacies without a prescription. If you are planning to test for ketones at home, ask your health care provider for recommendations on which kit would be best for you. At-home urine tests are easy to perform and can provide accurate results as long as you carefully follow all instructions.

Some people use at-home kits to test for ketones if they are on a ketogenic or "keto" diet. A keto diet is type of weight-loss plan that causes a healthy person's body to make ketones. Be sure to talk to your health care provider before going on a keto diet.

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Nastasia [14]

Answer:Yep u have to ask s1 else

Explanation:

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3 years ago
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Answer:

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Explanation:

160/3 = 53.3

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