Monday, March 24, 2008

Blood Pressure Lab Journal
1. State a problem about the relationship of age and gender to blood pressure.
One problem about the relationship of age and gender to blood pressure is that everyone has different health problems that may or may not affect their blood pressure.
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2. 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.
The average blood pressure for a group of people will be higher the older they get for both men and women. Men will have higher blood pressure than women for all age groups.
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3. How will you use the investigation screen to test your hypothesis? What steps will you follow? What data will you record?
I will test each age group for both men and women, I will record the average blood pressure for each gender and each age group.
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4. Analyze the result of your experiment. Explain any patterns you observed.
In the age group 11-17 both the male and female average were the same. In the age group 18-24 the male average was higher than the female.
In the 25-34 age group the male average was higher than the female.
In the 35-44 age group the male average was higher than the female.
In the 45-54 age group the male average was higher than the female. The average female blood pressure stayed about the same until the 35-44 age group. The blood pressure rose for the 35-44 age group. The 45-54 age group had the highest average out of all the age groups.
The average for the male blood pressure for the 18-24 age group was higher than the 11-17 age group. The average for the 25-34 and 35-44 both were about the same, both were higher than the 18-24 age group. The 45-54 age group had the highest average out of all the age groups.
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5. 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?
The results of the experiment did not support my hypothesis. The male average was always higher than the female average, with one exception, the average for the 11-17 age group was the same for both genders. The blood pressure averages did go higher as both genders aged, males showed a significant increase with the 25-34 age group. The females did not show much of an increase until the 35-44 age group. The older you get the higher your blood pressure tends to be but genders make a difference in the timing. Males blood pressure starts rising at an earlier age than females.
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6. During the course of your experiment, did you obtain any blood pressure reading 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?
Yes, There were several readings that were outside the norm for the different groups. In their medical charts they usually had one or a combination of these things in their medical history: family history of hypertension, high salt diet, lack of exercise, alcohol consumption. This tells me that these factors may contribute to high blood pressure.
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7. List risk factors associated with the hypertension. Based on your observation, which risk factor do you think is most closely associated with hypertension?
risk factor associated with hypertension are a family history of hypertension, high salt diet, lack of exercise, alcohol consumption. The risk factor that I think is most closely associated with hypertension is a family history of hypertension.
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8. 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?
Obesity may cause a person to have higher blood pressure. Obesity alone may cause a person to be at high risk for high blood pressure. Obesity combined with high salt diet, lack of exercise, alcohol consumption, or a family history of hypertension may increase a person's risk for high blood pressure.
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Blood Pressure
Table

Ages Male systolic Male Diastolic Female Diastolic Female Systolic

11-17 118 77 118 77
18-24 128 80 117 75
25-34 133 83 117 78
35-44 131 82 127 81
45-54 139 88 132 82



Key
Pink Line: male systolic pressure Green Line: female systolic pressure
Blue Line: male diastolic pressure Orange line: female diastolic pressure