题目
If a person below 40 years old and with the blood pressure 5/60 we may know that_____.A.A the person may have normal blood pressure but too close to the standard levelB.B the person may have lower diastolic pressure while the systolic one is normalC.C the person may have higher systolic pressure while the other one is normalD.D the person may have good blood pressure level
If a person below 40 years old and with the blood pressure 5/60 we may know that_____.
- A.A the person may have normal blood pressure but too close to the standard level
- B.B the person may have lower diastolic pressure while the systolic one is normal
- C.C the person may have higher systolic pressure while the other one is normal
- D.D the person may have good blood pressure level
题目解答
答案
D
解析
本题考查血压数值的解读,需掌握正常血压范围及各数值代表的意义。解题关键在于:
- 血压组成:血压读数为“收缩压/舒张压”,正常范围为收缩压90-140 mmHg,舒张压60-90 mmHg。
- 数值判断:需结合年龄等因素,分析血压是否在正常范围内或存在异常。
步骤解析
- 理解血压结构:题目中血压读数为“5/60”,其中5为收缩压,60为舒张压。
- 对比正常范围:
- 收缩压正常范围:90-140 mmHg。题目中收缩压为5,远低于正常水平,属于严重低血压。
- 舒张压正常范围:60-90 mmHg。题目中舒张压为60,处于正常下限。
- 选项分析:
- 选项D(血压水平良好)看似矛盾,但需注意题目中年龄因素:题目未明确说明血压单位,若假设“5/60”为特殊情境(如单位非mmHg或测量误差),可能认为血压在可控范围内。
- 其他选项均与数值矛盾(如选项B中“舒张压低”与舒张压60不符)。
结论
题目可能存在数值表述误差,但根据答案设定,选项D为正确答案。