RD Exam Practice Questions and
Answers
Which of the following was used when calculating estimated energy needs presented in
the US Dietary Guidelines?
a) Ideal weight
b) Reference weight
c) Healthy weight per body mass index
d) Measured weight - ANS-b) Reference weight
Estimated energy needs presented in the DGA were based on estimated energy
requirement (EER) equations using reference heights (average) and reference weights
(healthy) for each age-sex group.
According to which system would a soup made of thin broth and 1.2-cm soft carrot
cubes be classified as "6-0"?
a) EAL grading
b) encpt coding
c) ICD-10 coding
d) IDDSI framework - ANS-c) IDDSI framework
Per the International Dysphagia Diet Standardisation Initiative, or IDDSI, it is necessary
to characterize both the liquid and the solid components of dual-consistency foods to
ensure they are appropriate for a given patient.
The IDDSI testing methods can be used to describe the texture of a dual-consistency
food by separating the components. A soup with 1.2 cm sized cubes of carrot floating in
a broth would be classified as 6-0 because the food (carrots) are Level 6 - soft and bite-
sized and the liquid (broth) is Level 0 - thin.
This enzyme found in the kidney is needed for the conversion of 25-hydroxyvitamin D3
to the active form.
a) 25-hydroxylase
b) 24-hydroxylase
c) 1-hydroxylase
d) 22-hydroxylase - ANS-c) 1-hydroxylase
,The 1-hydroxylase enzyme is found in highest concentrations in the kidneys and is
responsible for converting 25-hydroxyvitamin D3 to 1,25-dihydroxyvitamin D (its active
form).
25-hydroxylase is the enzyme responsible for the first required hydroxylation of D3 and
is found in the liver.
24-hydroxylase is responsible for the breakdown of the vitamin.
Which of the following foods should be limited in women taking tamoxifen?
a) Tofu
b) Edamame
c) Chickpeas
d) Grapefruit juice - ANS-d) Grapefruit juice
Grapefruit is known for interfering with a host of medications, including tamoxifen.
Meanwhile, there is a lot of misinformation regarding soy and estrogens. Though there
are concerns regarding "phytoestrogens" in soy foods that have led to
recommendations that women who take tamoxifen should avoid soy foods (the
hypothesis is that these foods could negate the medication's estrogen-blocking effects),
research demonstrates that soy foods appear to enhance or improve tamoxifen's breast
cancer-blocking actions.
Which of the following statements is true with regard to NPIs (national provider
identifiers)?
a) NPI requirements are no longer applicable if a billing agency is responsible for
transactions
b) NPI numbers change if an RDN moves from one state to another
c) If an NPI isn't used within 12 months, it is automatically deactivated
d) Individual practitioners who don't meet HIPAA coverage criteria may still need an NPI
- ANS-d) Individual practitioners who don't meet HIPAA coverage criteria may still need
an NPI
The NPI is a unique, 10-digit number that identifies a health care provider; the NPI is
specific to an individual and doesn't change. An EIN number is separate from an NPI
and used for tax purposes but is still important if an RDN is working in private practice.
All health care providers (individuals or organizations) who are HIPAA-covered entities
are required by law to obtain an NPI when transmitting electronic health information in
connection with HIPAA standard transactions, even if the transaction is prepared by a
third-party billing agency.
And some individuals who don't meet HIPAA coverage criteria may still be required to
obtain an NPI. RDNs who work in a private practice setting need to have these specific
, numbers to assist with "credentialing" or becoming a recognized health care provider of
an insurance plan. The Academy encourages all members to obtain an NPI to ensure
there are adequate numbers of RDNs who can provide service.
What is the age range when weight and body mass index peak?
a) 30-39 years
b) 40-49 years
c) 50-59 years
d) 60-69 years - ANS-c) 50-59 years
Weight and BMI peak between age 50 and 59 years, then stabilize and start slowly
dropping around age 70.
Which of the following is true of the IDDSI Level 7 Regular (Black) diet?
a) Crunchy and hard foods are the only restriction
b) There are no restrictions on allowable foods
c) Mixed-consistency foods are permitted for adult patients only
d) Food particle size is the only restriction - ANS-b) There are no restrictions on
allowable foods
The Level 7 Regular (Black) diet of the International Dysphagia Diet Standardisation
Initiative is not a texture-modified diet and therefore there are no restrictions on
allowable foods on this diet.
Which of the following is a malnutrition diagnosis in Nutrition Care Process terminology?
a) New-onset illness malnutrition
b) Acute disease or condition-related malnutrition
c) Nutrient deficiency-related malnutrition
d) Chronic disease or condition-related malnutrition - ANS-d) Chronic disease or
condition-related malnutrition
The six malnutrition diagnoses in the Nutrition Care Process terminology include the
following:
-malnutrition (undernutrition)
-starvation-related malnutrition
-chronic disease or condition-related malnutrition
-acute disease or injury-related malnutrition
-non-illness-related pediatric malnutrition
-illness-related pediatric malnutrition
What kind of food should mostly comprise the diet of a 14-month old child?
a) Homemade, pureed foods
Answers
Which of the following was used when calculating estimated energy needs presented in
the US Dietary Guidelines?
a) Ideal weight
b) Reference weight
c) Healthy weight per body mass index
d) Measured weight - ANS-b) Reference weight
Estimated energy needs presented in the DGA were based on estimated energy
requirement (EER) equations using reference heights (average) and reference weights
(healthy) for each age-sex group.
According to which system would a soup made of thin broth and 1.2-cm soft carrot
cubes be classified as "6-0"?
a) EAL grading
b) encpt coding
c) ICD-10 coding
d) IDDSI framework - ANS-c) IDDSI framework
Per the International Dysphagia Diet Standardisation Initiative, or IDDSI, it is necessary
to characterize both the liquid and the solid components of dual-consistency foods to
ensure they are appropriate for a given patient.
The IDDSI testing methods can be used to describe the texture of a dual-consistency
food by separating the components. A soup with 1.2 cm sized cubes of carrot floating in
a broth would be classified as 6-0 because the food (carrots) are Level 6 - soft and bite-
sized and the liquid (broth) is Level 0 - thin.
This enzyme found in the kidney is needed for the conversion of 25-hydroxyvitamin D3
to the active form.
a) 25-hydroxylase
b) 24-hydroxylase
c) 1-hydroxylase
d) 22-hydroxylase - ANS-c) 1-hydroxylase
,The 1-hydroxylase enzyme is found in highest concentrations in the kidneys and is
responsible for converting 25-hydroxyvitamin D3 to 1,25-dihydroxyvitamin D (its active
form).
25-hydroxylase is the enzyme responsible for the first required hydroxylation of D3 and
is found in the liver.
24-hydroxylase is responsible for the breakdown of the vitamin.
Which of the following foods should be limited in women taking tamoxifen?
a) Tofu
b) Edamame
c) Chickpeas
d) Grapefruit juice - ANS-d) Grapefruit juice
Grapefruit is known for interfering with a host of medications, including tamoxifen.
Meanwhile, there is a lot of misinformation regarding soy and estrogens. Though there
are concerns regarding "phytoestrogens" in soy foods that have led to
recommendations that women who take tamoxifen should avoid soy foods (the
hypothesis is that these foods could negate the medication's estrogen-blocking effects),
research demonstrates that soy foods appear to enhance or improve tamoxifen's breast
cancer-blocking actions.
Which of the following statements is true with regard to NPIs (national provider
identifiers)?
a) NPI requirements are no longer applicable if a billing agency is responsible for
transactions
b) NPI numbers change if an RDN moves from one state to another
c) If an NPI isn't used within 12 months, it is automatically deactivated
d) Individual practitioners who don't meet HIPAA coverage criteria may still need an NPI
- ANS-d) Individual practitioners who don't meet HIPAA coverage criteria may still need
an NPI
The NPI is a unique, 10-digit number that identifies a health care provider; the NPI is
specific to an individual and doesn't change. An EIN number is separate from an NPI
and used for tax purposes but is still important if an RDN is working in private practice.
All health care providers (individuals or organizations) who are HIPAA-covered entities
are required by law to obtain an NPI when transmitting electronic health information in
connection with HIPAA standard transactions, even if the transaction is prepared by a
third-party billing agency.
And some individuals who don't meet HIPAA coverage criteria may still be required to
obtain an NPI. RDNs who work in a private practice setting need to have these specific
, numbers to assist with "credentialing" or becoming a recognized health care provider of
an insurance plan. The Academy encourages all members to obtain an NPI to ensure
there are adequate numbers of RDNs who can provide service.
What is the age range when weight and body mass index peak?
a) 30-39 years
b) 40-49 years
c) 50-59 years
d) 60-69 years - ANS-c) 50-59 years
Weight and BMI peak between age 50 and 59 years, then stabilize and start slowly
dropping around age 70.
Which of the following is true of the IDDSI Level 7 Regular (Black) diet?
a) Crunchy and hard foods are the only restriction
b) There are no restrictions on allowable foods
c) Mixed-consistency foods are permitted for adult patients only
d) Food particle size is the only restriction - ANS-b) There are no restrictions on
allowable foods
The Level 7 Regular (Black) diet of the International Dysphagia Diet Standardisation
Initiative is not a texture-modified diet and therefore there are no restrictions on
allowable foods on this diet.
Which of the following is a malnutrition diagnosis in Nutrition Care Process terminology?
a) New-onset illness malnutrition
b) Acute disease or condition-related malnutrition
c) Nutrient deficiency-related malnutrition
d) Chronic disease or condition-related malnutrition - ANS-d) Chronic disease or
condition-related malnutrition
The six malnutrition diagnoses in the Nutrition Care Process terminology include the
following:
-malnutrition (undernutrition)
-starvation-related malnutrition
-chronic disease or condition-related malnutrition
-acute disease or injury-related malnutrition
-non-illness-related pediatric malnutrition
-illness-related pediatric malnutrition
What kind of food should mostly comprise the diet of a 14-month old child?
a) Homemade, pureed foods
