33 Questions
Which artery is commonly used to feel the pulse through the skin?
Radial artery
What does feeling the pulse actually indicate?
Increase in heart rate
What does the diastolic pressure represent in blood pressure measurements?
Pressure when the ventricles are relaxed
Which number in blood pressure measurements represents the pressure during ventricular systole?
Systolic pressure
How is blood pressure measured?
Using a sphygmomanometer
Which of the following is true about feeling the pulse through the skin?
Feeling the pulse indicates an increase in pressure in the respective artery
What is the systolic pressure in blood pressure measurements?
The larger number and represents the pressure in the artery during ventricular systole
What is the diastolic pressure in blood pressure measurements?
The smaller number and represents the pressure when the ventricles are relaxed
How is blood pressure measured?
Using a column of the heavy liquid metal in a tube of known diameter and elevation
What are the sounds of the karatekov or korotkov named after?
The person who discovered them
What do the sounds of the karatekov or korotkov indicate during blood pressure measurement?
The measurement of the systolic pressure
What is recorded on the dial of the sphygmomanometer when the blood pressure drops?
The measurement of the cuff pressure
What does a taller mercury column in the tube indicate during blood pressure measurement?
Higher blood pressure
Which one of these represents the electrical signal from the atria depolarizing?
The P-wave
Which one of these is responsible for sending impulses to the apex and the rest of the ventricles to contract?
The atrioventricular node
Which one of these represents the time between atria and ventricles contracting?
The PR or PQ interval
Which one of these represents the time that the ventricles spend completely depolarized before repolarizing?
The ST segment
Which one of these represents the time of the ventricular action potential?
The QT interval
Which one of these represents the increase in ventricular pressure that causes the aortic pressure to increase as well?
The QRS complex
Which one of these represents the time when the semilunar valves open?
The QRS complex
Which one of these represents the time when the ventricles contract and the AV valves close?
The QRS complex
Which one of these represents atrial depolarization and its resulting contraction?
The P wave
Which one of these represents the time when the blood is squeezed out of the heart during ventricular contraction?
Ventricular systole
Which of the following represents the pressure in the artery during ventricular systole?
Systolic pressure
What is the purpose of measuring the sounds of the karatekov or korotkov during blood pressure measurement?
To indicate the measurement of the systolic pressure
What do the lub-dub sounds represent during the cardiac cycle?
Valves shutting to keep blood from going back into atria
What are murmurs in relation to blood pressure measurement?
Valve noises caused by fluid flowing over them
What is the purpose of feeling one's pulse?
To feel an increase in pressure in the respective artery
What is the purpose of measuring blood pressure using a column of mercury in a tube?
To measure the pressure of the blood
What is the purpose of the karatekov or korotkov sounds during blood pressure measurement?
To determine the systolic pressure
What happens when the blood pressure drops during blood pressure measurement?
Noise can be heard and a needle is recorded on the dial of the sphygmomanometer
What is the purpose of measuring the diastolic pressure in blood pressure measurements?
To measure the pressure when the ventricles are relaxed
What is the purpose of feeling the pulse near major arteries close to the skin?
To feel an increase in pressure in the respective artery
Study Notes
Blood Pressure Measurement
- The radial artery is commonly used to feel the pulse through the skin.
- Feeling the pulse indicates the heart's ability to pump blood effectively.
Blood Pressure Components
- Diastolic pressure represents the pressure in the arteries when the heart is at rest (between beats).
- Systolic pressure represents the pressure during ventricular systole (when the heart is pumping).
- Blood pressure is measured using a sphygmomanometer, which consists of an inflatable cuff and a mercury column.
Korotkov Sounds
- The Korotkov sounds are named after Nikolai Korotkov.
- The sounds indicate the blood pressure.
- The Korotkov sounds are used to measure blood pressure.
ECG Components
- The P wave represents the electrical signal from the atria depolarizing.
- The AV node is responsible for sending impulses to the apex and the rest of the ventricles to contract.
- The PR interval represents the time between atria and ventricles contracting.
- The QT interval represents the time of the ventricular action potential.
- The ST segment represents the time that the ventricles spend completely depolarized before repolarizing.
- The T wave represents the increase in ventricular pressure that causes the aortic pressure to increase as well.
- The QRS complex represents the time when the semilunar valves open.
- The QRS complex also represents the time when the ventricles contract and the AV valves close.
- The P wave also represents atrial depolarization and its resulting contraction.
- The T wave also represents the time when the blood is squeezed out of the heart during ventricular contraction.
Blood Pressure Measurement Purpose
- The purpose of measuring blood pressure is to assess the pressure in the arteries.
- The purpose of feeling the pulse is to assess the heart's ability to pump blood effectively.
- The purpose of measuring the Korotkov sounds is to determine the blood pressure.
- The purpose of using a column of mercury in a tube is to measure blood pressure.
- Murmurs are abnormal sounds heard during blood pressure measurement.
Note: I've grouped similar concepts together under headings to make the study notes more organized and easier to review.
Test your knowledge about the human pulse and blood pressure with this informative quiz. Learn about how to feel your pulse, understand the relationship between pulse and heartbeats, and explore the significance of systolic pressure in blood pressure measurements.
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