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Tutor profile: Drew B.

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Drew B.
Doctor of Physical Therapy and certified Emergency Medical Technician, human anatomy and physiology specialist
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Questions

Subject: Health and Medicine

TutorMe
Question:

What is considered normal blood pressure according the American Heart Association?

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Drew B.
Answer:

A systolic pressure below 120 mmHg and a diastolic pressure below 80 mmHg.

Subject: Anatomy

TutorMe
Question:

What are the nerve root levels in the lumbosacral plexus that make up the sciatic nerve?

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Drew B.
Answer:

Lumbar segment L4 through sacral segment S2

Subject: Physical Science

TutorMe
Question:

Please explain how taking a beta-blocker can have serious implications for someone beginning a new workout regimen?

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Drew B.
Answer:

Beta-blockers action is to block the effects of the hormone epinephrine on the myocardium of the heart. This stunts the rate at which the heart can pump per minute, which reduces cardiac output. A decrease in cardiac output reduces blood flow, which reduces tissue perfusion, resulting in poor tissue performance at the cellular level, where oxygen is converted into ATP, used to contract muscles.

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