NUTRITION NBNSC-CNSC Latest Test Question - Mock NBNSC-CNSC Exam

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NUTRITION NBNSC-CNSC Exam Syllabus Topics:

SectionWeightObjectives
Clinical Monitoring and Management18%- Drug-Nutrient Interactions
  • 1. Effects of drugs on nutrients
  • 2. Effects of nutrients on drugs
- Monitoring of Nutrition Support
  • 1. Laboratory monitoring
  • 2. Adjustment of care plans
  • 3. Clinical monitoring
- Complications
  • 1. Infectious complications
  • 2. Metabolic complications
  • 3. GI complications
  • 4. Mechanical complications
Team and Program Management12%- Education and Training
  • 1. Patient education
  • 2. Staff training
- Interdisciplinary Team
  • 1. Communication
  • 2. Roles and responsibilities
- Ethical and Legal Considerations
  • 1. Standards of practice
  • 2. End-of-life nutrition
  • 3. Informed consent
- Quality Management
  • 1. Outcome measures
  • 2. Policies and procedures
  • 3. Performance improvement
Basic Science12%- Biochemistry and Metabolism
  • 1. Micronutrient metabolism
  • 2. Fluid and electrolyte balance
  • 3. Macronutrient metabolism
  • 4. Acid-base balance
- Biochemical assessment
  • 1. Nutrient deficiency/toxicity
- Anatomy
  • 1. Vascular access anatomy
  • 2. GI tract anatomy
- Physiology
  • 1. Gastrointestinal physiology
  • 2. Endocrine regulation
  • 3. Immunology
Clinical Intervention28%- Enteral Nutrition
  • 1. Access devices
  • 2. Indications and contraindications
  • 3. Pediatric considerations
  • 4. Administration methods
  • 5. Formula selection
- Nutrition Focused Physical Exam (NFPE)
  • 1. Identification of deficiency signs
- Parenteral Nutrition
  • 1. Components (dextrose, amino acids, lipids)
  • 2. Monitoring
  • 3. Vascular access devices
  • 4. Indications
  • 5. Preparation and compounding
- Oral Nutrition Support
  • 1. Nutrition counseling
  • 2. Supplements
  • 3. Texture modifications
Nutrition Assessment18%- Biochemical and Clinical Data
  • 1. Organ function tests
  • 2. Micronutrient levels
  • 3. Visceral protein markers
- Estimation of Nutrient Requirements
  • 1. Fluid requirements
  • 2. Energy expenditure
  • 3. Protein requirements
- Intake Assessment
  • 1. Oral intake evaluation
  • 2. Dietary history
- Medical History and Physical Exam
  • 1. Assessment of nutritional status
  • 2. Identification of risk factors
- Anthropometric Measurements
  • 1. Growth parameters (pediatrics)
  • 2. Weight changes
  • 3. Body composition
Clinical Practice12%- Disease-Specific Nutrition
  • 1. Surgical patients
  • 2. Pancreatitis
  • 3. Renal disease
  • 4. Hepatic disease
  • 5. Critical illness
  • 6. Oncology
  • 7. Pulmonary disease
- Burns and Trauma
  • 1. Nutritional requirements
  • 2. Metabolic changes
- Special Populations
  • 1. Pediatrics
  • 2. Transplant patients
  • 3. Obesity
  • 4. Geriatrics

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NUTRITION NBNSC Certified Nutrition Support Clinician (CCN) Sample Questions (Q76-Q81):

NEW QUESTION # 76
The body requires energy to process food through digestion, absorption, transportation, metabolism and storage. This requirement represents_____________% of daily energy (calorie) intake.

Answer: C

Explanation:
The body expends a portion of its daily energy intake on the process of digesting, absorbing, transporting, metabolizing, and storing the food we consume. This energy expenditure is known as the Thermic Effect of Food (TEF), also sometimes referred to as dietary-induced thermogenesis.
TEF represents the increase in metabolic rate after ingestion of a meal, and it varies depending on the composition of the meal; for instance, proteins usually have a higher thermic effect compared to carbohydrates and fats. On average, the TEF accounts for approximately 10% of the total daily energy expenditure. This means that if an individual consumes 2000 calories in a day, about 200 of those calories will be utilized simply for processing the food eaten.
To calculate the total daily energy needs, one must consider not only the basal metabolic rate (BMR), which is the energy expended at rest to maintain vital body functions, but also the energy used in physical activity and the TEF. The formula to adjust BMR for TEF involves multiplying the BMR by 0.10 - reflecting the 10% average TEF - and then adding this value back to the BMR before incorporating activity levels. This adjusted figure provides a more accurate estimation of total daily energy needs, ensuring that dietary recommendations meet the individual's true energy requirements.
Understanding this component of energy expenditure is crucial for devising precise dietary plans, particularly for weight management strategies. By accounting for the energy used in food processing, individuals can better gauge their net caloric intake and make informed decisions about their eating habits and activity levels.


NEW QUESTION # 77
The diabetes diagnostic test that is an integrated measure of long-term mean glycemia is which of the following?

Answer: D


NEW QUESTION # 78
All of the following are limitations of the 24-hour recall of food intake of an individual except:

Answer: D

Explanation:
To answer the question about the limitations of the 24-hour recall of food intake, it's essential to understand what each statement implies and identify which one is incorrect as a limitation.
The 24-hour dietary recall method is a commonly used dietary assessment tool where an individual recalls all the foods and beverages they consumed in the previous 24 hours. While this method is relatively easy to administer and requires less time compared to other methods like food records, it comes with several limitations.
One limitation is that "one recall is seldom representative of a person's usual intake." This statement is true because dietary habits can vary daily, and a single day's intake may not accurately reflect typical consumption patterns. Therefore, relying on a single 24-hour recall might not provide a comprehensive view of an individual's dietary habits.
The statement "under-reporting does not occur" is not correct as a limitation because, in reality, under-reporting is a significant limitation of the 24-hour recall method. Individuals often forget or deliberately omit certain foods or underestimate portion sizes, which can lead to inaccuracies in the data collected. Both under-reporting and over-reporting are common issues in dietary recall methods, affecting the reliability of the data.
Another limitation is the reliance on memory, as stated in "relies on memory." Since this method depends entirely on the individual's ability to recall their food intake accurately, it is susceptible to errors in memory. People may not remember every detail accurately, especially for incidental items like condiments, snacks, or beverages.
Lastly, "omissions of dressings, sauces, and beverages can lead to low estimates of energy intake" is also a true limitation. These items are often overlooked or forgotten when recalling what was eaten, yet they can significantly contribute to total caloric and nutrient intake. The omission of such items can result in underestimation of energy and nutrient consumption, which can skew research findings or dietary assessments.
In conclusion, the correct answer to the question is that "under-reporting does not occur" is the exception and not a limitation of the 24-hour recall method. All other options correctly describe limitations associated with this dietary assessment tool.


NEW QUESTION # 79
Humans carry _______________TAS1R taste receptor genes in a single cluster on chromosome 1.

Answer: C

Explanation:
*P1* Humans carry 3 TAS1R taste receptor genes in a single cluster on chromosome 1. *P2* These genes are responsible for encoding the taste receptors that detect sweetness and umami (a savory taste). Specifically, the three genes are TAS1R1, TAS1R2, and TAS1R3. TAS1R1 and TAS1R3 combine to form the receptor for umami taste, whereas TAS1R2 and TAS1R3 combine to form the receptor that detects sweet tastes. This gene arrangement allows humans to perceive a range of tastes derived from different combinations of these receptors. *P3* The proteins encoded by these genes belong to the class C group of G-protein coupled receptors (GPCRs), which are characterized by their large N-terminal extracellular domains. These domains have a structure similar to a Venus flytrap, which is crucial for the function of these receptors. The "Venus flytrap" module enables the receptor to bind to tastants (taste-provoking chemical substances), such as sugars, peptides, and amino acids, leading to taste perception. *P4* The presence of these genes in a single cluster on chromosome 1 suggests a streamlined evolutionary path for taste detection mechanisms in humans, emphasizing the importance of taste in survival and food selection. This clustering also facilitates coordinated regulation of taste receptor expression, ensuring that these crucial proteins are synthesized in appropriate amounts and locations, depending on the body's dietary needs and the environment.


NEW QUESTION # 80
Which of the following tests is used to diagnose and monitor treatment of acute pancreatitis?

Answer: D

Explanation:
Acute pancreatitis is an inflammation of the pancreas that can be severe and life-threatening. The condition often requires rapid diagnosis and treatment to manage symptoms and prevent complications. One crucial diagnostic test used in this context is the amylase test. Amylase is an enzyme produced primarily by the pancreas and the salivary glands to help in the digestion of carbohydrates.
When the pancreas is inflamed, as in the case of acute pancreatitis, it may release more amylase into the bloodstream. Therefore, measuring the levels of amylase in the blood can help in the diagnosis of acute pancreatitis. The normal range for amylase levels in the blood is typically between 21 and 160 units per liter (U/L). Elevated levels may indicate pancreatitis, although they can also be seen in other medical conditions.
It's important to note that while amylase testing is useful in the initial diagnosis of acute pancreatitis, it is not the only test used. Other tests, such as lipase levels, which can be more specific to pancreatic function, might also be conducted. Moreover, imaging tests like abdominal ultrasound or CT scans are often required to assess the extent of inflammation and to check for complications such as pancreatic necrosis or fluid collections.
In terms of treatment monitoring, amylase levels are sometimes tracked over time to see how well the pancreas is healing or responding to therapy. However, the focus often shifts towards managing symptoms, preventing complications, and addressing the underlying cause of the pancreatitis.
The other options listed (GGT, T3, creatinine) are tests used for different purposes. GGT (Gamma-Glutamyl Transferase) is primarily used to assess liver function and diagnose liver diseases. T3 (Triiodothyronine) is one of the thyroid hormones and is measured to evaluate thyroid function. Creatinine tests are used to evaluate kidney function. None of these are relevant for diagnosing or monitoring acute pancreatitis, highlighting why amylase is the correct answer in this context.


NEW QUESTION # 81
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