Use the information and your knowledge of science to answer the question.

Use the normal ecg trace below to determine how many seconds the trace represents as well as the heart rate.

mezya [45]

Attached is the image of the concerned ECG reading.

In reading the ECG, first you read the heart rate. To read the heart rate, you must count for the number of small boxes in between QRS complexes, specifically R-R intervals. These number of small boxes will then be used to divide 1500. In this example, there are 20 small boxes between R-R intervals. 1500 divided by 20 is 75, so the heart rate of this ECG reading is 75 beats per minute.

<em>Another way, albeit less accurate, is to count the big squares between R-R intervals and instead of dividing it by 1500, you divide it by 300.</em>

3 0

2 years ago

A person you are helping is awake and alert but is complaining of a severe headache, pain in their abdomen and nausea. you obser

Zinaida [17]

There are choices for this question namely:

a. What is your name and where do you live?
b. How much poison did you swallow?
c. How long have you been feeling this way?
<span>d. What have you recently had to eat or drink?
</span>
The correct answer is "what have you recently had to eat or drink". This will confirm the suspicion by first ruling out potential reactive foods or drinks that may have caused a similar reaction (i.e. allergic reactions). If that is ruled out, then the probing about the history of intake of poison will come next in the interview.

6 0

2 years ago

Is foliation a characteristic of a sedimentary rock?

lara31 [8.8K]

Answer:

No

Explanation:

Metamorphic rocks

5 0

2 years ago

Many scientists are worried about some of

NikAS [45]

I think the answer is (4) using large amounts of some materials that cannot be renewed :))
i hope this be helpful
* happy new year *

7 0

2 years ago

Which of the following is an example of "unity in diversity"? View Available Hint(s) Which of the following is an example of "un

Ierofanga [76]

Answer:

The correct answer is All of the above are correct.

Explanation:

Earth is very diverse which contains microscopic organism to huge organisms like blue whales. Some live in water, some live on land and some live in extream climates. But there is something which unites every organism on this earth as every organism is evolved from a single individual.

Therefore there is unity in diversity seen at many stages in living organisms like structure of DNA is same in all organisms, every organism contains the same genetic code for a particular amino acid, forelimbs of all mammals have the same basic structure and evolved for different functions.

These all are the examples of unity in diversity so the correct answer is all of the above.

8 0

2 years ago