The Approximate Range of Human Hearing Is

question 35

Multiple Choice

The approximate range of human hearing is

• A) 20 hertz to 20,000 hertz.
• B) 40 hertz to 40,000 hertz.
• C) 10 hertz to 10,000 hertz.
• D) Actually all of these-depends on the hearing ability of the person.

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Definitions:

Packed Red Blood Cells

Red blood cells that have been concentrated and separated from whole blood for the purpose of transfusion, aimed at treating blood loss or anemia.

Platelet Count

A measurement of the number of platelets in a blood sample, important for diagnosing and monitoring bleeding disorders and other conditions.

Pursed-Lip Breathing

A breathing technique that involves exhaling through tightly pressed (pursed) lips and is often used by people with lung conditions to improve breathing.

Pulse Oximetry

A non-invasive method that measures the oxygen saturation level of the blood.