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Which of the following statements with respect to an average adult is/are correct? a. The normal range of glucose in the blood while fasting is up to 70 mg %. b. The normal range of glucose in the blood post lunch is up to 140 mg %.

Which of the following statements with respect to an average adult is/are correct? a. The normal range of glucose in the blood while fasting is up to 70 mg %. b. The normal range of glucose in the blood post lunch is up to 140 mg %. Correct Answer Only b

The correct answer is Only b.

Key Points

  • Normal blood sugar levels are less than 100 mg/dL after not eating (fasting) for at least eight hours. And they're less than 140 mg/dL two hours after eating.  
  • Hence the correct answer is Only b.

Additional Information 

  • They're less than 100 mg/dL after not eating (fasting) for at least 8 hours. And they're less than 140 mg/dL 2 hours after eating.
  • During the day, levels tend to be at their lowest just before meals. For most people without diabetes, blood sugar levels before meals hover around 70 to 80 mg/dL. For some people, 60 is normal; for others, 90.
  • Glucose is precious fuel for all the cells in your body when it's present at normal levels. But it can behave like a slow-acting poison.
  • High sugar levels slowly erode the ability of cells in your pancreas to make insulin.
  • The organ overcompensates and insulin levels stay too high. Over time, the pancreas is permanently damaged.
  • High levels of blood sugar can cause changes that lead to a hardening of the blood vessels.
  • Almost any part of your body can be harmed by too much sugar.
  • Damaged blood vessels cause problems such as:
    • Kidney disease or kidney failure, requiring dialysis
    • Strokes
    • Heart attacks
    • Vision loss or blindness
    • The weakened immune system, with a greater risk of infections
    • Erectile dysfunction
    • Nerve damage, also called neuropathy, causes tingling, pain, or less sensation in your feet, legs, and hands
    • Poor circulation to the legs and feet
    • Slow wound-healing and the potential for amputation in rare cases

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