The Effects of Lifestyle, Sex & Genetics on Blood Pressure Many things might affect heart rate, including the physical fitness of the individual, the presence of drugs such as caffeine or nicotine in the blood, and the age of the person. Heart rate and blood pressure work together to ensure that blood reaches cells at a rate that is sufficient to supply nutrients and remove waste products. If one variable decreases the other will increase to maintain this balance. For example, if the body detects a drop in blood pressure, it will help to correct this imbalance by increasing heart rate until the body can adjust blood pressure by other methods. Watch these videos to learn the terminology and science of blood pressure along with how to take a proper blood pressure reading. https://www.ausmed.com/cpd/articles/how-to-take-blood-pressure When a person is well hydrated and healthy the body can make these adjustments without you ever being aware. But, if a person is dehydrated, taking certain medication or has a sick heart this becomes very obvious. In this situation, the person will often complain of light-headed (decrease in blood pressure) and experience a pounding in their chest (increase in heart rate). When an individual presents with these complaints, the doctor may obtain a set of orthostatic vital signs. This involves measuring heart rate and blood pressure as the individual goes from a laying, to sitting to a standing position. A patient is considered to be orthostatic (unable to maintain blood pressure when changing positions) if their systolic pressure (top number) decreases by 20mmHg, their diastolic pressure (bottom number) decreases by 10mmHg and heart rate increases by 30 beats per minute. Using your book, PowerPoints and Ausmed Tutorial (link above) answer the following QUESTIONS: What is considered a normal resting blood pressure? Hypotension? Hypertension? Hypertensive Emergency? We know that most people will experience symptoms of dizziness when their blood pressure is in the hypotensive range. When do you think someone with chronic hypertension might experience symptoms of hypotension
The Effects of Lifestyle, Sex & Genetics on Blood Pressure
Many things might affect heart rate, including the physical fitness of the individual, the presence of drugs such as caffeine or nicotine in the blood, and the age of the person.
Heart rate and blood pressure work together to ensure that blood reaches cells at a rate that is sufficient to supply nutrients and remove waste products. If one variable decreases the other will increase to maintain this balance. For example, if the body detects a drop in blood pressure, it will help to correct this imbalance by increasing heart rate until the body can adjust blood pressure by other methods.
Watch these videos to learn the terminology and science of blood pressure along with how to take a proper blood pressure reading.
https://www.ausmed.com/cpd/articles/how-to-take-blood-pressure
When a person is well hydrated and healthy the body can make these adjustments without you ever being aware. But, if a person is dehydrated, taking certain medication or has a sick heart this becomes very obvious. In this situation, the person will often complain of light-headed (decrease in blood pressure) and experience a pounding in their chest (increase in heart rate).
When an individual presents with these complaints, the doctor may obtain a set of orthostatic vital signs. This involves measuring heart rate and blood pressure as the individual goes from a laying, to sitting to a standing position. A patient is considered to be orthostatic (unable to maintain blood pressure when changing positions) if their systolic pressure (top number) decreases by 20mmHg, their diastolic pressure (bottom number) decreases by 10mmHg and heart rate increases by 30 beats per minute.
Using your book, PowerPoints and Ausmed Tutorial (link above) answer the following QUESTIONS:
- What is considered a normal resting blood pressure?
Hypotension?
Hypertension?
Hypertensive Emergency?
- We know that most people will experience symptoms of dizziness when their blood pressure is in the hypotensive range. When do you think someone with chronic hypertension might experience symptoms of hypotension
- Give the 2 reasons you are able to feel a pulse.
- How do you find the point at which you start to deflate the cuff when doing someone’s blood pressure?
- When do you note the diastolic number?
- Trace the electrical activity through the heart.
Experiment:
In this experiment, you will use a virtual lab to compare the risk factors for hypertension at different ages and sexes.
http://glencoe.mheducation.com/sites/0078802849/student_view0/unit9/chapter34/virtual_labs.html#
- Use your knowledge about the heart and the circulatory system to make a hypothesis about how the average blood pressure for a group of people would be affected by manipulating the age and gender of the group members.
- How will you use the investigation screen to test your hypothesis?
- Perform the experiment and record any abnormal blood pressure results.
|
Age |
Male Blood Pressure |
Risk Association |
Female Blood Pressure |
Risk Association |
|
11-17 |
|
|
|
|
|
18-24 |
|
|
|
|
|
25-34 |
|
|
|
|
|
35-44 |
|
|
|
|
|
45-54 |
|
|
|
|
- Analyze the result of your experiment. Explain any patterns you observed.
- Did the result of your experiment support your hypothesis? Why or why not? Based on your experiment what conclusion can you draw about the relationship of age and gender to group blood pressure averages?
- During the course of your experiment, did you obtain any blood pressure readings that were outside of the normal range for the group being tested? What did you notice on the medical charts for these individuals that might explain their high reading?
- List risk factors associated with hypertension. Based on your observation, which risk factor do you think is most closely associated with hypertension?
- What effect might obesity have on blood pressure? Does obesity alone cause a person to be at risk for high blood pressure? What other factors, in combination with obesity, might increase a person's risk for high blood pressure?
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