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Water and Electrolytes

1. (3) Most of us do not meet our Adequate Intake (AI) levels for potassium (4.7 gms for adults) and we exceed them for sodium (1.5 gms for adults).  The Dietary Guidelines recommend not exceeding 2.3 gms (2300 mgs) of sodium.

  • What foods should people limit to keep sodium intake under the AI for sodium?
  • List a variety of foods with serving sizes that would help people meet the 4.7 gm AI for potassium.

2.   (3) Who is most vulnerable to becoming dehydrated and under what circumstances?

  • Describe the most effective rehydration strategies when dehydrated.

3.  (4) Read this scenario and answer the following questions to explore how blood pressure is related to sodium and potassium intake.
An overweight, sedentary, male in his 50s has just returned from the doctor where he was told to lower his blood pressure because he has hypertension.  He eats out often at fast food places and relies on convenience foods for home meals. He does not engage in regular physical activity as he owns his own computer store and works at least 50 hours a week. He asks you for ideas to help him decrease his blood pressure. 

  • What would his blood pressure have been for this diagnosis (Refer to p. 371- 372)?
  • What are his risk factors for hypertension?

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