cardiac cycle, and it tells us how well the vital organs (like the renal system, brain etc.) are being perfused. In addition with the brain, the MAP is very important when calculating the cerebral perfusion pressure.
The MAP should be >65 mmHg.
Normal 70-100 mmHg
To calculate the MAP:
You need to know the patient’s blood pressure and this formula:
MAP= SBP + 2(DBP)
3
*systolic blood pressure PLUS (diastolic blood pressure which is multiplied by 2) and then DIVIDED by 3.
Let’s work a problem:
BP: 102/38
38 x 2=76
76 + 102 = 178
178/3=59.33333…..59 mmHg= MAP
Lecture
Mean Arterial Pressure (MAP) Calculations
This quiz will test your knowledge on how to calculate the mean arterial pressure (MAP).
ECG/EKG Study Guide and Workbook for Nursing Students
You can get an eBook version here: “Nurse Sarah ECG Book” or a physical copy here: “ECG/EKG Interpretation Study Guide by Nurse Sarah“.
Mean Arterial Pressure Practice Problems
1. Patient’s blood pressure is: 155/98 What is the patient’s MAP? A. 89 mmHg B. 75 mmHg C. 117 mmHg D. 96 mmHg The answer is C. 2. Patient’s blood pressure is: 76/28 What is the patient’s MAP? A. 44 mmHg B. 52 mmHg C. 63 mmHg D. 79 mmHg The answer is A. 3. Patient’s blood pressure is: 220/118 What is the patient’s MAP? A. 99 mmHg B. 36 mmHg C. 89 mmHg D. 152 mmHg The answer is D. 4. Patient’s blood pressure is: 160/102 What is the patient’s MAP and how do you interpret this finding? A. 100 mmHg, normal B. 121 mmHg, high C. 65 mmHg, normal D. 86 mmHg, low The answer is B. 5. Patient’s blood pressure is: 80/56 What is the patient’s MAP and how do you interpret this finding? A. 78 mmHg, normal B. 96 mmHg, low C. 86 mmHg, normal D. 64 mmHg, low The answer is D. More NCLEX Quizzes
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