Question 1

Recent data from the National Health and Nutrition Examination Survey indicate that iodine intake for the overall U.S.population is inadequate.

Accepted Answer

Recent data from the National Health and Nutrition Examination Survey indicate that the overall U.S. population has adequate iodine intake, with concerns primarily focused on specific groups such as pregnant women who may be at risk for iodine deficiency.

Question 2

One advantage of using the serum concentration of soluble transferrin receptor as a biochemical marker for iron status is that it is not affected by inflammation or infection.

Accepted Answer

The serum concentration of soluble transferrin receptor is not influenced by inflammation or infection, making it a reliable marker for assessing iron status regardless of these conditions.

Question 3

There is a lack of agreement among nutrition researchers on what constitutes an optimal serum concentration of vitamin D.

Accepted Answer

There is ongoing debate and varying opinions among researchers about what the optimal level of vitamin D in the blood should be.

Question 4

Data from the National Health and Nutrition Examination Survey show that the prevalence of vitamin A deficiency in the U.S.is very low.

Accepted Answer

The data from the National Health and Nutrition Examination Survey indicate that the prevalence of vitamin A deficiency in the U.S. is very low.

Question 5

Because pre-albumin has a shorter __________ than albumin,changes in nutritional status can be detected more rapidly by monitoring pre-albumin than by monitoring albumin.

Accepted Answer

The answer of Because pre-albumin has a shorter __________ than...

Question 6

Data from the National Health and Nutrition Examination Survey show that the prevalence of iron deficiency varies little across different racial and ethnic groups.

Accepted Answer

Data from the National Health and Nutrition Examination Survey indicate that the prevalence of iron deficiency can significantly vary across different racial and ethnic groups, with certain groups experiencing higher rates of deficiency than others.

Question 7

The iodization of table salt sold in Canada and in the United States is mandatory.

Accepted Answer

In the United States, iodization of table salt is voluntary, not mandatory. However, in Canada, iodization of table salt sold for household consumption is mandatory, but the regulation does not apply to all types of salt, such as kosher salt and some sea salts.

Question 8

The most critical period for adequate iodine intake is during uterine development and the first two years of life.

Accepted Answer

During fetal development and the first two years of life, the brain is rapidly developing and requires adequate iodine intake for proper growth and function. A deficiency during this critical period can lead to irreversible cognitive and neurological deficits known as iodine deficiency disorders (IDD). It is important for expectant mothers to ensure they have sufficient iodine intake during pregnancy, and for infants to receive iodine-rich foods or supplements during the first two years of life.

Question 9

Although the most common cause of anemia is iron deficiency,there are a number of other common causes,which are collectively referred to as anemia of __________.

Accepted Answer

The answer of Although the most common cause of anemia...

Question 10

Preschool children and women of childbearing age are the groups at greatest risk of iron deficiency.

Accepted Answer

Preschool children and women of childbearing age are at greater risk of iron deficiency due to their increased iron requirements for growth and menstruation respectively.

Question 11

Deficiency of vitamin D delays growth and causes ________ in children.

Accepted Answer

The answer of Deficiency of vitamin D delays growth and...

Question 12

The percentage of red blood cells making up the entire volume of whole blood is known as packed cell volume or ________.

Accepted Answer

The answer of The percentage of red blood cells making...

Question 13

The classic sign of iodine deficiency is thyroid gland enlargement,which is referred to as __________.

Accepted Answer

The answer of The classic sign of iodine deficiency is...

Question 14

Severe iodine deficiency in utero can result in a condition known as __________.

Accepted Answer

The answer of Severe iodine deficiency in utero can result...

Question 15

While too little iodine in the diet can result in iodine deficiency disorders,high intakes of iodine are not a health concern.

Accepted Answer

High intakes of iodine can lead to iodine-induced hyperthyroidism, thyroid gland inflammation, and autoimmune thyroid disease.

Question 16

If sun exposure is sufficient,dietary intake of vitamin D is not necessary.

Accepted Answer

The statement is false. While sun exposure is an excellent source of vitamin D, many people may not get enough due to factors such as living in northern latitudes, wearing sunscreen, or spending most of their time indoors. In these cases, dietary intake of vitamin D through food or supplements may be necessary to reach sufficient levels.

Question 17

The term __________ refers to abnormally small red blood cells.

Accepted Answer

The answer of The term __________ refers to abnormally small...

Quiz 9: Biochemical Assessment of Nutritional Status