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3 years ago

The ECGs QRS complex is the stimulus for atrial diastole. a. True b. False

Medicine

1 answer:

Natalka [10]3 years ago

6 0

Answer:

The correct answer will be option-A

Explanation:

Electrocardiogram or ECG is the recording and representation of the electrical changes that are taking place during the cardiac cycle.

The QRS complex is preceded by the P wave or atrial systole or atrial depolarization after which the electrical signals are passed on to the AV node.

As soon as the AV node passes the electrical signals to bundle of His, it is observed in as the QRS interval which represents the atrial diastole and the onset of ventricular depolarization.

Thus, option-true is the correct answer.

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The implementation of nutritional counseling for pregnant women best represents which public health strategy

VashaNatasha [74]

The implementation of nutritional counseling for pregnant women best represents Active Primary Prevention.

<h3>What is primary prevention?</h3>

Prevention includes a wide range of activities (interventions) which are aimed at reducing risks or threats to health.
There are three categories of prevention: primary, secondary and tertiary.
Primary prevention aims to prevent disease or injury before it ever occurs. This is done by preventing exposures to hazards that cause disease or injury, altering unhealthy or unsafe behaviors that can lead to disease or injury.
It includes measures that a patient can take to avoid some diseases. These include hand washing, immunization, birth control and condoms, etc.
Passive prevention strategies are those that do not require action by an individual for protection to occur; individuals are automatically protected. E.g.: Airbags in cars
Active prevention strategies are those that require individual action for the intervention to be effective. E.g.: Wearing seat belt, nutritional counselling

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2 years ago

Consumption of alcohol, particularly larger volumes, causes increased urination. This is primarily due to inhibition of the secr

Paraphin [41]

Answer:

The correct answer is D.

Explanation:

ADH, <em>also called arginine vasopressin</em> is a hypothalamic hormone (storaged in the posterior pituitary) that <u>regulates body’s osmotic balance</u>.

ADH increases the amount of solute-free water reabsorbed from the one filtrated in the kidneys.

Also, increases peripheral vascular resistance due to the constriction of arterioles, and therefore raises blood pressure.

<u>Ethanol (alcohol)</u> reduces secretion of ADH by blocking voltage-gated calcium channels. As a result, <em>urine volume increases and this may cause dehydration. </em>

3 0

3 years ago

The nurse is preparing to administer 80 mg of methylprednisolone intravenously (IV) to a client with pneumonia. The vial states

schepotkina [342]

The nurse would correctly draw up 1.3 mL.

<h3>What is methylprednisolone?</h3>

Methylprednisolone is used to treat illnesses of the skin, kidneys, lungs, eyes, blood, renal and intestinal abnormalities, severe allergic responses, arthritis, blood disorders, immune system issues, some malignancies, and eye ailments. It lessens the immune system's reactivity to certain illnesses in order to lessen symptoms including pain, swelling, and allergic-like responses. A corticosteroid hormone is included in this drug. In cases of hormone abnormalities, methylprednisolone may potentially be used with other drugs.

<h3>How is methylprednisolone administered?</h3>

Similar to prednisone, methylprednisolone can also be administered intravenously (IV) at greater dosages to treat severe inflammation. The use of IV methylprednisolone in illnesses like lupus that affects the kidneys or brain as well as some forms of vasculitis is an example.

<h3>Given: </h3>

Desired dose : 80 mg

Quantity on hand : 2 mL

Dose on hand : 120 g

Desired quantity = ?

<h3>Formula used : </h3>

$\frac{Dose on hand }{Quantity on hand } = \frac{Dose desired}{Quantity desired}$

<h3>Solution : </h3>

120 g / 2 mL = 80 g / Quantity desired

= > Quantity desired = 2 x 80 / 120 mL

= > Quantity desired = 1.33 mL ≈ 1.3mL

Therefore, quantity of methylprednisolone intravenously (IV) drawn by the nurse is 1.3 mL .

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8 0

1 year ago

If I want to be an RN can I complete college in 4 years?

Anna35 [415]

Answer

There are several different educational paths that will lead you to a degree in nursing depending on your background and preference. You will need to go to school for a minimum of two years for an associates degree in nursing (unless you already have a degree in another major) and a maximum of four years to obtain a BSN degree. There are some diploma programs still in operation (no degree), but it is increasingly important to have a degree in nursing to be competitive.

7 0

3 years ago

Read 2 more answers

Failure to use the care that a reasonable, prudent and careful person would use in a similar situation is?

almond37 [142]

I would say it is a mixture of all the above! The moral to the story is never trust or rely on anyone but yourself at the end of the day.

8 0

3 years ago

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