RD Exam Practice Questions with correct answers

A patient is experiencing ketosis due to diabetes complications and a reduced pCO2. You suspect: a. metabolic acidosis b. metabolic alkalosis c. respiratory acidosis d. respiratory alkalosis - Answer The correct answer is a. Metabolic Acidosis Correct Answer Explanation: Metabolic acidosis is characterized by a reduced pCO2 or pH. Causes may include starvation, low carbohydrate diet, or diabetic ketosis. You are teaching a cooking class on how to add flavor to foods without adding salt. When cooking green beans, you add lemon juice which turns the vegetable olive green. The chlorophyll pigment has come into contact with an acid and as a result the pigment has chemically changed to: a. chlorophyllin b. anthocyanin c. pheophytin d. none of these, it remains the same - Answer The correct answer is c. pheophytin Correct Answer Explanation: When chlorophyll (concentrated in green plants) comes in contact with an acid (lemon juice), the chlorophyll chemically changes to pheophytin (gives an appearance of a dull olive green color). Incorrect Answers Explanation: Chlorophyllin results when an alkali (baking soda) is add