Explain how accurate skin prick tests are for diagnosing allergies


Skin prick tests are used as a preliminary test to narrow the list of potential problem substances, since the negative predictive value is >95%. However, positive predictive value is about 50%, so it may not be sufficient to establish a diagnosis.

Nutritional Science

You might also like to view...

A graph showing the relationship between mortality and body mass index is shaped like the a/n ________.

a. J b. S c. backslash d. inverted U e. forward slash

Nutritional Science

Gluconeogenesis is the:

a. catabolism of carbohydrate b. creation of glucose from glycerol and amino acids c. breakdown of glycogen releasing glucose d. creation of glycogen

Nutritional Science

Most of the guidelines for dietary intake include recommendations for physical activity and food safety as well

a. True b. False Indicate whether the statement is true or false

Nutritional Science

Answer questions 1-10 based on the "Elly" case study information below. Elly is a 27-year-old, sedentary woman who is 5 feet tall, weighs 150 pounds, and is currently breast feeding her baby (lactating). Several months after her baby was born her health was not improving as she had expected, so she had a health assessment done. The results indicated that she is obese with fasting total blood

cholesterol of 237 mg/dl, triglycerides of 331 mg/dL, low-density lipoprotein (LDL) cholesterol of 203 mg/dL, high-density lipoprotein (HDL) cholesterol of 34 mg/dL, fasting blood sugar of 226 mg/dL, and resting blood pressure of 141/86 mm Hg. Dietary analysis results showed her to have a total daily Calorie intake of 2,705, Calorie need of 2,241, protein intake of 44 grams, fiber intake of 38 grams, cholesterol intake of 311 mg, and sodium intake of 3,423 mg. ? Because she is breast feeding, her DRI for protein is 1.1 g/kg. Elly consumed about 80% of her Dietary Reference Intake (DRI) for protein (round her calculated DRI to the nearest whole gram of protein). Indicate whether the statement is true or false

Nutritional Science