Podcast
Questions and Answers
What blood pressure category is defined by a systolic blood pressure (SBP) of 135 mmHg?
What blood pressure category is defined by a systolic blood pressure (SBP) of 135 mmHg?
Which of the following corresponds to a diastolic blood pressure (DBP) reading of 85 mmHg?
Which of the following corresponds to a diastolic blood pressure (DBP) reading of 85 mmHg?
Which of the following is defined as having an SBP of 150 mmHg?
Which of the following is defined as having an SBP of 150 mmHg?
What is the definition of the blood pressure category classified as 'Elevated'?
What is the definition of the blood pressure category classified as 'Elevated'?
Signup and view all the answers
Which category of blood pressure includes an SBP of 118 mmHg and a DBP of 78 mmHg?
Which category of blood pressure includes an SBP of 118 mmHg and a DBP of 78 mmHg?
Signup and view all the answers
Flashcards
Blood Pressure Categories
Blood Pressure Categories
Groups that classify blood pressure levels such as normal and hypertensive ranges.
Normal Blood Pressure
Normal Blood Pressure
Blood pressure readings of less than 120 mmHg systolic and less than 80 mmHg diastolic.
Elevated Blood Pressure
Elevated Blood Pressure
Blood pressure readings of 120-129 mmHg systolic and less than 80 mmHg diastolic.
Stage 1 Hypertension
Stage 1 Hypertension
Signup and view all the flashcards
Stage 2 Hypertension
Stage 2 Hypertension
Signup and view all the flashcards
Study Notes
Blood Pressure (BP)
- BP is the pressure exerted against vessel walls by blood
- Determined by cardiac output (CO) and vascular resistance
- Measured as systolic (maximum) over diastolic (minimum) pressure
- Typically reported in mmHg
- Normal resting BP is <120/<80 mmHg
- Recent changes to hypertension classifications: ≥130/80 mmHg
Cardiac Output (CO)
- CO = Heart Rate (HR) × Stroke Volume (SV)
- HR is the number of heart beats per minute
- SV is the amount of blood pumped per beat
Vascular Resistance
- Resistance exerted against blood flow
- Determined by vessel diameter; smaller diameter = greater resistance
- Exercise increases vascular resistance
Systolic Blood Pressure (SBP)
- Maximum pressure during ventricular contraction (systole)
- Usually higher than diastolic pressure
Diastolic Blood Pressure (DBP)
- Minimum pressure during ventricular relaxation (diastole)
- Usually lower than systolic pressure
Factors Affecting BP
- Body position (e.g., orthostatic hypotension)
- Hydration
- Stress
- Exercise
- Sex
- Age
- Muscle actions
- Disease
Measuring BP
- Indirect measurement using a sphygmomanometer and stethoscope
- Cuff size is critical to accuracy
- Clothing and environmental factors should be minimized
- Appropriate arm position and rest periods should be considered
- BP readings from both arms are initially compared
- Use the higher reading for assessment in a clinical setting
Hypertension
- Elevated BP readings considered hypertension
- Classifications have changed from ≥ 140/90 to ≥130/80 mmHg
Exercise Testing & BP
- BP can be an indicator of the heart's work
- BP measurement accuracy is vital in exercise physiology
- Preparation for BP measurements (e.g., avoiding stimulants, loose clothing)
- Measurements under standardized conditions are critical for accuracy in exercise settings
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz covers the essential concepts of blood pressure, including its definition, measurements, and classifications. It also delves into cardiac output and vascular resistance, explaining how these factors interact to affect blood pressure levels. Test your knowledge on these critical cardiovascular topics!
