A Level Exam > A Level Videos > Biology A-Level > BP Measurement & Heart Overview
BP Measurement & Heart Overview Video Lecture | Biology A-Level - A Level
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FAQs on BP Measurement & Heart Overview Video Lecture - Biology A-Level - A Level
| 1. What is blood pressure measurement? |  |
Ans. Blood pressure measurement refers to the process of determining the force of blood against the walls of the arteries as the heart pumps it throughout the body. It is typically measured using a sphygmomanometer, which consists of an inflatable cuff wrapped around the upper arm and a pressure gauge. Blood pressure is recorded as two numbers, systolic pressure over diastolic pressure, with normal readings being around 120/80 mmHg.
| 2. How is blood pressure measured? | |
Ans. Blood pressure is measured using a sphygmomanometer. The cuff is wrapped around the upper arm and inflated to temporarily stop the flow of blood in the brachial artery. Then, the pressure in the cuff is slowly released while the healthcare provider listens to the blood flow using a stethoscope placed on the arm. The point at which the healthcare provider first hears the blood flow is the systolic pressure, and the point at which the sound disappears is the diastolic pressure.
| 3. What is the difference between systolic and diastolic blood pressure? | |
Ans. Systolic blood pressure refers to the highest pressure in the arteries when the heart contracts and pumps blood. It is the first number recorded in a blood pressure reading. Diastolic blood pressure, on the other hand, represents the lowest pressure in the arteries when the heart is at rest between beats. It is the second number recorded in a blood pressure reading. Both numbers are important in determining overall blood pressure levels.
| 4. What are the factors that can affect blood pressure? | |
Ans. Several factors can influence blood pressure, including age, gender, physical activity level, stress, diet, and underlying medical conditions. Age-related changes in the arteries, hormonal changes, and decreased elasticity of blood vessels can all contribute to higher blood pressure. Additionally, conditions such as obesity, diabetes, kidney disease, and high cholesterol can increase the risk of developing hypertension, which is high blood pressure.
| 5. Why is it important to monitor and control blood pressure? | |
Ans. Monitoring and controlling blood pressure is crucial for maintaining overall health and preventing various health problems. High blood pressure, if left uncontrolled, can lead to serious complications such as heart disease, stroke, kidney damage, and vision loss. On the other hand, low blood pressure can cause dizziness, fainting, and insufficient blood flow to vital organs. Regular blood pressure monitoring and appropriate management can help reduce the risk of these complications and promote overall well-being.
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Nov 15, 2024 Last updated |
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