A 40-year-old man has his blood pressure measured as part of a routine medical exam. His blood pressure is recorded as 155/95 mmHg. This is unexpected as it has been normal for the past 5 annual medical exams. Which of the following factor may affect blood pressure reading? Select one: a. The patient talking during the reading b. Elevation of the measured arm above heart level c. An undersized blood pressure cuff d. The patient lying on an examination couch during the reading
Added by Muhammad Alif Nasrullah S.
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The patient talking during the reading: This can indeed affect the blood pressure reading. When a person talks, their blood pressure can temporarily increase, leading to a higher reading. b. Elevation of the measured arm above heart level: This can also affect Show more…
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Blood pressure. Systemic blood pressure is expressed as the ratio of the systolic pressure (when the heart first ejects blood into the arteries) to the diastolic pressure (when the heart is relaxed). Normal systemic blood pressure is $\frac{120}{80}$. (a) What are the maximum and minimum forces (in newtons) that the blood exerts against each square centimeter of the heart for a person with normal blood pressure? (b) Blood pressure is normally measured on the upper arm at the same height as the heart. Due to therapy for an injury, a patient's upper arm is extended $30.0 \mathrm{~cm}$ above his heart. In that position, what should be his systemic blood-pressure reading, expressed in the standard way, if he has normal blood pressure? The density of blood is $1060 \mathrm{~kg} / \mathrm{m}^{3}$.
Penny R.
Blood pressure. Systemic blood pressure is expressed as the ratio of the systolic pressure (when the heart first ejects blood into the arteries) to the diastolic pressure (when the heart is relaxed): systemic blood pressure $=\frac{\text { systolic pressure }}{\text { diastolic pressure }}$ Both pressures are measured at the level of the heart and are expressed in millimeters of mercury (or torr), although the units are not written. Normal systemic blood pressure is $\frac{120}{80}$ . (a) What are the maximum and minimum forces (in newtons) that the blood exerts against each square centimeter of the heart for a person with normal blood pressure? (b) As pointed out in the text, blood pressure is normally measured on the upper arm at the same height as the heart. Due to therapy for an injury, a patient's upper arm is extended 30.0 $\mathrm{cm}$ above his heart. In that position, what should be his systemic blood pressure reading, expressed in the standard way, if he has normal blood pressure? The density of blood is 1060 $\mathrm{kg} / \mathrm{m}^{3}$ .
Cyra Jelle C.
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