Question

For this task, you will be writing a Python script that will determine a person’s blood pressure category. The program should prompt the user for the systolic and diastolic blood pressure readings. Based on the readings and using the table below, the program will determine and output the category.

Category Systolic Diastolic
Hypotension 50-89 35-59
Normal 90-119 60-79
Pre-hypertension 120-139 80-89
Mild Hypertension 140-159 90-99
Moderate Hypertension 160-179 100-109
Severe Hypertension 180-209 110-119
Very Severe Hypertension 210-239 120-135
  
Other Requirements for the Program:
 Your program should first check for invalid readings and should output a message for invalid readings. Systolic or Diastolic readings that fall below or above the readings in the table are invalid. 

If a person’s readings put them in two different categories, the higher category should be selected. For example, someone with a blood pressure reading of 118/85 would be categorized as normal for the systolic reading and pre-hypertension for the diastolic reading. The program should output pre-hypertension. However, if a person has one reading that is normal and one reading in Hypotension (Low), they should be categorized as Hypotension which means low blood pressure.

Answer 1

Refer to the screenshots for better understanding of code and indentation

Code -

# function to find systolic category and level, return list of [level, category]
def systolic_category(reading):
   reading = int(reading) #converting reading to integer
  
   if reading >= 50 and reading <= 89:
       return [1, "Hypotension"]
   elif reading <= 119:
       return [2,"Normal"]
   elif reading <= 139:
       return [3, "Pre-hypertension"]
   elif reading <= 159:
       return [4, "Mild Hypertension"]
   elif reading <= 179:
       return [5, "Moderate Hypertension"]
   elif reading <= 209:
       return [6, "Severe Hypertension"]
   elif reading <= 239:
       return [7, "Very Severe Hypertension"]
  
  
# function to find diastolic category and level, return list of [level, category]  
def diastoloc_category(reading):
   reading = int(reading) #converting reading to integer
  
   if reading >= 35 and reading <= 59:
       return [1, "Hypotension"]
   elif reading <= 79:
       return [2, "Normal"]
   elif reading <= 89:
       return [3, "Pre-hypertension"]
   elif reading <= 99:
       return [4, "Mild Hypertension"]
   elif reading <= 109:
       return [5, "Moderate Hypertension"]
   elif reading <= 119:
       return [6, "Severe Hypertension"]
   elif reading <= 135:
       return [7, "Very Severe Hypertension"]
      
      

def main():
  
   # taking input, removing leading and trailing spaces and converting to integer
   systo = input("Enter Systolic reading: ").strip()
   systo = int(systo)
   diasto = input("Enter Diastolic reading: ").strip()
   diasto = int(diasto)
  
   # checkinh if readings are out of range and output invalid readings if invalid
   if systo < 50 or systo > 239:
       print("Invalid Systolic readings")
   elif diasto > 135 or diasto < 35:
       print("Invalid Diastolic readings")
   else: #if reading are valid
      
       systo_cat = systolic_category(systo) # getting systolic reading category and level
       diasto_cat = diastoloc_category(diasto) # getting diastolic reading category and level
      
       if systo_cat[0] == 2 and diasto_cat[0] == 1: # checking if one reading is normal and other is Hypotension
           print(diasto_cat[1])
       elif systo_cat[0] == 1 and diasto_cat[0] == 2: # checking if one reading is normal and other is Hypotension
           print(systo_cat[1])
       else: # printing higher category of the two
           if systo_cat[0] >= diasto_cat[0]:
               print(systo_cat[1])
           elif diasto_cat[0] > systo_cat[0]:
               print(diasto_cat[1])

  
main()

Screenshots

Code

Output