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NUTRITION NBNSC Certified Nutrition Support Clinician (CCN) Sample Questions (Q53-Q58):

NEW QUESTION # 53
When pureeing food, what happens to the volume of fruits and vegetables?

Answer: B

Explanation:
When pureeing fruits and vegetables, the volume of the produce decreases. This occurs because the process of pureeing breaks down the fibrous structures and cells within the fruits and vegetables, releasing trapped air and reducing the overall space they occupy. Additionally, during pureeing, any excess water contained within the produce may also be released, which contributes to a reduction in volume.
The result of pureeing is a more compact, smoother texture that appears to occupy less space than the original whole fruits or vegetables. Despite this decrease in volume, the nutritional content of the fruits and vegetables remains, making the puree more nutrient-dense per spoonful compared to the raw, whole form. This is beneficial for creating concentrated flavors and nutrients in meals, especially in dishes where space and texture are considerations, such as smoothies or soups.
It's important to note that this characteristic of decreasing volume is specific to fruits and vegetables. In contrast, when meats are pureed, the volume can actually increase. This is because meats generally require the addition of liquids, such as water or broth, to facilitate the pureeing process and achieve a palatable texture. This addition of liquid increases the overall volume of the pureed meat compared to its original form.


NEW QUESTION # 54
Up to 20 mcg/100 ml of plasma Carotene in all ages is considered:

Answer: A

Explanation:
The question pertains to the categorization of plasma carotene levels and their interpretation in terms of nutritional status. Plasma carotene levels are used as a biomarker for vitamin A status as well as overall intake of carotenoid-rich fruits and vegetables. Carotenes are converted by the body into vitamin A, which is essential for vision, growth, and immune function.
According to the information provided, plasma carotene levels up to 20 mcg/100 ml for all ages are considered deficient. This implies that such low levels indicate an inadequate intake of carotenoid-containing foods, potentially leading to vitamin A deficiency if not addressed. This is critical as vitamin A deficiency can result in severe health problems, including impaired vision (night blindness), an increased risk of infection, and in severe cases, blindness.
The question then mentions a "marginal" status for plasma carotene levels between 20-39 mcg/100 ml for all ages, and specifically for pregnant women, a marginal status is considered for levels between 40-79 mcg/100 ml. Marginal status suggests that while the levels are not low enough to be classified as deficient, they are not optimal and could benefit from nutritional improvement to prevent potential health issues.
Furthermore, acceptable levels of plasma carotene are defined as 40+ mcg/100 ml for all ages, and 60+ mcg/100 ml specifically for pregnant women. These levels are considered sufficient and imply a healthy intake of carotenoids, suggesting a lower risk of vitamin A deficiency and associated health problems.
In context, if plasma carotene levels are up to 20 mcg/100 ml, it indicates a deficiency in carotene intake, which is critical for maintaining adequate vitamin A levels and overall health. Thus, the correct response to the question about the status of plasma carotene levels up to 20 mcg/100 ml being considered for all ages is "deficient." This highlights the need for increased consumption of carotenoid-rich foods or supplementation to achieve optimal health outcomes.


NEW QUESTION # 55
Serum is:

Answer: B

Explanation:
Serum is a component of blood that is obtained after the removal of blood cells and the clotting factors. To understand what serum is, it's crucial to know how it is derived from blood. Blood consists of several components including red blood cells, white blood cells, platelets, and plasma. When blood is drawn and allowed to clot, the solid components (blood cells and clotting factors) form a clot, and the remaining liquid is what is known as serum.
This process can be facilitated by centrifugation, where the blood is spun at high speeds, causing the heavier components like blood cells and clotting factors to separate and settle at the bottom, leaving the serum as the supernatant fluid. It is essential that anticoagulants are not used in this process because their presence prevents clotting, leading instead to the creation of plasma, not serum.
Serum plays a significant role in medical diagnostics. It is commonly used in laboratory assessments as it serves as a rich source of biomarkers-substances that can be measured to assess the health of an individual. For instance, serum levels of glucose, cholesterol, proteins, and hormones can provide valuable insights into a person's metabolic processes and whether they are within normal ranges or indicative of a disease.
Furthermore, serum is used in the detection of antibodies indicating infections, autoimmune disorders, and exposure to certain pathogens. Therefore, it is a crucial tool in both clinical diagnosis and management of various medical conditions. It helps in the evaluation, diagnosis, and monitoring of patients in a broad spectrum of healthcare settings.


NEW QUESTION # 56
A person with a BMI of 26.0 falls into which of the following categories?

Answer: D

Explanation:
Body Mass Index (BMI) is a simple calculation used to assess whether a person has a healthy body weight for a person of their height. It is obtained by dividing a person's weight in kilograms by the square of their height in meters (kg/m

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