Nutrition Practice Test 1
Nutrition NCLEX Practice Test
Nutrition, within the NCLEX test plan under Nursing Science → Clinical Foundations, reflects the core knowledge domains and conceptual competencies directly related to what the exam evaluates. The targeted number of questions is 50; designed with realistic clinical scenarios and conceptual variety to help you identify both your strengths and improvement areas.
This test is the 1st part of the Nutrition section. To explore all practice tests under this topic, use the “Back to Main Topic” button at the end of the page.
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In the Nutrition Study Cards section, shared by real NCLEX candidates, you’ll find concise summaries and high-yield insights related to the most tested concepts. It’s a perfect space to reinforce challenging topics and sharpen your recall through quick, focused repetitions. Short, powerful, and repeatable!
Nutrition Practice Test 1
One gram of Protein gives ........kcal?
- 5
- 9
- 4
- 2
Explanation: Answer reason: Protein provides approximately 4 kilocalories per gram because its metabolic oxidation yields this consistent energy value across dietary sources. This is a foundational principle of human nutrition and macronutrient energy balance.
Essential fatty acid?
- Linoleic acid
- Linolenic acid
- Arachidonic acid
- All these
Explanation: Answer reason: Essential fatty acids are those not synthesized adequately in the body and must be obtained from diet. Standard nutrition texts list linoleic, linolenic, and arachidonic acids as essential (arachidonic is especially essential in infants), so all listed are considered essential.
Riboflavin deficiency causes?
- Cheilosis
- Loss of weight
- Mental deterioration
Explanation: Answer reason: Riboflavin (vitamin B2) deficiency classically presents with cheilosis (angular stomatitis), glossitis, and seborrheic dermatitis. Mental deterioration is associated with niacin deficiency (pellagra), and weight loss is nonspecific.
The sugar found in milk is?
- Galactose
- Glucose
- Fructose
- Lactose
Explanation: Answer reason: Lactose is the primary carbohydrate (milk sugar) present in milk and is a disaccharide composed of glucose and galactose.
The main storage form of carbohydrate in the body is?
- Glycogen
- Fructose
- Sugar
- Ribose
Explanation: Answer reason: In humans, excess glucose is stored as glycogen in the liver and skeletal muscle; fructose, ribose, and a generic "sugar" are not storage polymers.
Which of the following is the indigestible portion of our diet that is essential to the health of the digestive system?
- Carbohydrates
- Proteins
- Fats
- Roughage
Explanation: Answer reason: Roughage (dietary fiber) is the indigestible component of plant foods that promotes bowel motility and supports digestive health.
Molar ratio of sodium to glucose in WHO ORS is?
- 1:1
- 1:2
- 1:4
- 2:1
Explanation: Answer reason: The WHO low-osmolarity ORS contains 75 mmol/L of sodium and 75 mmol/L of glucose, giving a 1:1 molar ratio.
Which nutrient is essential for the maintenance of osmotic pressure?
- Fat
- Vitamin
- Protein
- Carbohydrates
Explanation: Answer reason: Plasma proteins, especially albumin, create colloid oncotic pressure that maintains intravascular fluid balance; fats, carbohydrates, and vitamins do not have this effect.
The subgroup of lipids is known as ____________?
- Protein
- Carbohydrate
- Fats
- Enzymes
Explanation: Answer reason: Fats are a common subcategory of lipids; proteins and carbohydrates are separate macronutrient classes, and enzymes are mostly proteins.
The anti-beri-beri factor is called?
- Vitamin B2
- Vitamin B5
- Vitamin B1
- Vitamin B6
Explanation: Answer reason: Beriberi results from thiamine deficiency; the antiberiberi factor is thiamine, which is vitamin B1.
Which of the following vitamins contains cobalt?
- Vitamin A
- Vitamin B1
- Vitamin B6
- Vitamin B12
Explanation: Answer reason: Vitamin B12 (cobalamin) contains cobalt as part of its corrin ring; other listed vitamins do not.
Eating maize alone may lead to which of the following disease conditions?
- Osteoporosis
- Pellagra
- Colour blindness
Explanation: Answer reason: A maize-only diet is deficient in niacin and tryptophan, leading to niacin deficiency (pellagra).
Which vitamin deficiency is associated with the manifestations shown in the photograph?
- Vitamin Thiamine
- Vitamin Riboflavin
- Vitamin niacin
- Vitamin ascorbic acid
Explanation: Answer reason: Niacin deficiency causes pellagra, which is characterized by photosensitive dermatitis (often in sun-exposed areas), along with diarrhea and dementia. The described manifestations correspond to niacin deficiency.
What is milk deficient in?
- Iron and vitamin C
- Iron and vitamin A
- Phosphorus and vitamin C
- Phosphorus and vitamin A
Explanation: Answer reason: Dietary milk is a poor source of both iron and vitamin C, while it contains ample phosphorus and vitamin A. Therefore, the correct pair of nutrients deficient in milk is iron and vitamin C.
Scurvy is a disease caused by a deficiency of which vitamin?
- Vitamin A
- Vitamin B
- Vitamin C
- Vitamin D
Explanation: Answer reason: Scurvy results from vitamin C deficiency, which impairs collagen synthesis, leading to bleeding gums and poor wound healing.
What mineral makes bones strong?
- Zinc
- Calcium
- Sodium
- Potassium
Explanation: Answer reason: Bone matrix is mineralized primarily by calcium (as calcium phosphate/hydroxyapatite), which provides hardness and strength.
The daily requirement of niacin is?
- 5 mg
- 10 mg
- 20 mg
- 30 mg
Explanation: Answer reason: The adult niacin requirement is about 14–16 mg of niacin equivalents; many references round this to 20 mg. Among the choices, 20 mg is the accepted daily requirement.
The nurse is discussing meal planning with the mother of a 2-year-old. Which of the following statements, if made by the mother, would require further instruction?
- It is okay to give my child white grape juice for breakfast.
- My child can have a grilled cheese sandwich for lunch.
- We are going on a camping trip this weekend, and I bought hot dogs to grill for his lunch.
- For a snack, my child can have ice cream.
Explanation: Answer reason: Processed meats like hot dogs pose a choking hazard for toddlers due to their shape and texture; they should be avoided or cut into very small pieces.
A 15-month-old child fed on cow's milk with severe wasting and bipedal edema presents with poor appetite. Diagnosis?
- Kwashiorkor
- Marasmus
- Both
- None
Explanation: Answer reason: Edema with a poor appetite indicates kwashiorkor, while severe wasting indicates marasmus; together these features define marasmic-kwashiorkor, hence both.
Which of the following is false about kwashiorkor?
- Flaky-paint dermatosis
- Atrophic changes in the liver on biopsy
- Can easily pull loose hair.
- Serum albumin < 3 g per 100 mL
Explanation: Answer reason: Kwashiorkor features include flaky-paint dermatosis, easily pluckable hair, and marked hypoalbuminemia. The liver shows fatty infiltration with hepatomegaly, not atrophic changes; hence, option B is false.
What is the richest source of vitamin B1?
- Whole cereals
- Outer layer of rice and wheat.
- Oilseeds
- Fruits and meat
Explanation: Answer reason: Thiamine (vitamin B1) is concentrated in the bran and outer layers of cereals; polishing rice and wheat removes it, making the outer layer the richest source.
Amino acids which cannot be synthesized by the body are called ________?
- Essential
- Nonessential
- Nonpolar
- Polar
Explanation: Answer reason: Amino acids that the body cannot synthesize must be obtained from the diet and are termed essential amino acids.
An emaciated child with a monkey-like face and wasting of tissue and muscle is seen in?
- Kwashiorkor
- Protein malnutrition
- Marasmus
- Marasmus, kwashiorkor
Explanation: Answer reason: Marasmus presents with a severe calorie deficiency causing marked emaciation, monkey-like facies, and generalized tissue and muscle wasting. Kwashiorkor typically has edema and a moon face rather than extreme wasting.
Which condition is caused by a deficiency of vitamin B1?
- Rickets
- Bone Infection
- Beriberi
- Myopia
Explanation: Answer reason: Vitamin B1 (thiamine) deficiency leads to beriberi. Rickets is due to vitamin D deficiency; bone infection and myopia are unrelated.
Which condition is characterized by sunken features, loss of subcutaneous fat, muscle wasting, and body weight below 40 percent?
- Tumour
- Tuberculosis
- Marasmus
- Scurvy
Explanation: Answer reason: Marasmus is a severe energy deficiency causing marked wasting with loss of subcutaneous fat and a sunken, emaciated appearance; weight is markedly below that expected. The other options do not present this constellation of features.
What is the richest natural source of vitamin A?
- Carrot
- Fish
- Peas
- Cod liver oil
Explanation: Answer reason: Cod liver oil is an animal source rich in preformed vitamin A (retinol) and is more concentrated in it than plant sources like carrots or peas, making it the richest natural source among the options.
How many calories per kilogram does an infant require?
- 200 kcal/kg
- 500 kcal/kg
- 300 kcal/kg
- 120 kcal/kg
Explanation: Answer reason: Infants typically require about 100–120 kcal/kg/day; thus, 120 kcal/kg is the best answer among the choices.
The concentration of K+ in ORS is ___ mEq/L.?
- 20
- 40
- 90
- 10
Explanation: Answer reason: WHO reduced-osmolarity ORS contains potassium 20 mEq/L (with Na 75, Cl 65, glucose 75, and citrate 10).
Non-energy-supplying nutrients are?
- Vitamins
- Mineral
- Water
- All of them
Explanation: Answer reason: Vitamins, minerals, and water do not provide calories; only carbohydrates, fats, and proteins supply energy.
The sugar found in milk is ... ?
- Galactose
- Glucose
- Fructose
- Lactose
Explanation: Answer reason: Lactose is the disaccharide commonly known as milk sugar; galactose is a component of lactose; glucose is blood sugar, and fructose is fruit sugar.
...... is also known as table sugar?
- Maltose
- Sucrose
- Lactose
- Glucose
Explanation: Answer reason: Table sugar is sucrose, a disaccharide of glucose and fructose. Maltose is malt sugar, lactose is milk sugar, and glucose is blood sugar.
1 g of glucose gives ... kcal of energy?
- 9 kcal
- 4 kcal
- 3 kcal
- 2 kcal
Explanation: Answer reason: Carbohydrates, such as glucose, yield approximately 4 kcal per gram.
Richest source of vitamin B12?
- Milk and milk products
- Fruits
- Green leafy vegetables
- Meat, egg
Explanation: Answer reason: Vitamin B12 is found in animal products; the richest sources include meat (especially liver) and eggs. Fruits and green leafy vegetables are poor sources, and milk contains less than meat and eggs.
The body's most preferred energy source is...?
- Carbohydrate
- Protein
- Fat
- Minerals
Explanation: Answer reason: Glucose from carbohydrates is the body’s primary and preferred fuel, especially for the brain and red blood cells; protein is protein-sparing, and fat is used after carbs.
The main function of vitamin C is?
- Protein synthesis
- Lipid synthesis
- Collagen synthesis
- Keratinocyte synthesis
- Carbohydrate synthesis
Explanation: Answer reason: Vitamin C (ascorbic acid) is a cofactor for the hydroxylation of proline and lysine in collagen formation; its key role is in collagen synthesis.
Beriberi is a disease caused by a deficiency of?
- Cyanocobalamin
- Pyridoxine
- Thiamine
- Pantothenic acid
- Riboflavin
Explanation: Answer reason: Beriberi is due to a deficiency of thiamine (vitamin B1). The other options are vitamins B12, B6, B5, and B2, which cause different deficiency states.
Which of the following nutrients help in tissue repair?
- Vitamin
- Fat
- Carbohydrate
- Protein
Explanation: Answer reason: Proteins provide amino acids needed for building and repairing body tissues; carbohydrates and fats mainly supply energy, and vitamins support processes but are not the primary nutrient for tissue repair.
Best source of vitamin E?
- Green leafy vegetables
- Vegetable oil
- Fortified milk
- Fish liver oil
Explanation: Answer reason: Vitamin E is a fat-soluble antioxidant found in the highest amounts in vegetable oils (e.g., wheat germ, sunflower, safflower). Green leafy vegetables contain some; fortified milk is primarily a source of vitamin D; and fish liver oil is rich in vitamins A and D.
Which vitamin deficiency causes beriberi?
- Vitamin B1
- Vitamin B2
- Vitamin B3
- Vitamin C
Explanation: Answer reason: Beriberi results from thiamine (vitamin B1) deficiency, affecting carbohydrate metabolism and neural and cardiac function.
Which vitamin deficiency can affect your sleep?
- Vitamin A
- Vitamin B3
- Vitamin C
- Vitamin D
Explanation: Answer reason: Niacin (vitamin B3) deficiency can disturb tryptophan–serotonin–melatonin pathways, leading to sleep disturbances.
Which disorder is caused by a protein deficiency?
- Scurvy
- Anaemia
- Kwashiorkor
- None of the above
Explanation: Answer reason: Kwashiorkor is due to severe protein deficiency; scurvy is vitamin C deficiency and anaemia is typically due to iron, B12, or folate deficiency.
Which vitamin or mineral is human milk not rich in?
- Vitamin A
- Vitamin C
- Vitamin E
- Iron
Explanation: Answer reason: Breast milk contains adequate vitamins A, C, and E, but its iron content is low (though highly bioavailable). Thus iron is the exception.
What is 'fat' also known as in nursing terminology?
- Melanin
- Poikilothermic
- Chitin
- Triglycerides
Explanation: Answer reason: Dietary and stored fat is primarily in the form of triglycerides; melanin is pigment, poikelothermic relates to temperature regulation, and chitin is a polysaccharide.
Which vitamins promote healthy functioning of the eyes?
- Vitamin A
- Vitamin B
- Vitamin C
- Vitamin D
Explanation: Answer reason: Vitamin A (retinol) is essential for rhodopsin formation in the retina; deficiency causes night blindness and xerophthalmia, so it promotes healthy eye function.
Which of the following contains a larger quantity of vitamin C?
- Banana
- Grapes
- Figs
- Lemon
- None of them.
Explanation: Answer reason: Among the listed fruits, lemon contains the highest vitamin C content (about 50 mg/100 g), exceeding bananas, grapes, and figs.
Eggs are a rich source of?
- Proteins
- Vitamins
Explanation: Answer reason: Eggs are a well-known complete, high-quality protein source; while they contain vitamins, they are primarily recognized for their protein content.
Which vitamin is found in citrus fruits?
- Vitamin A
- Vitamin B
- Vitamin C
- Vitamin D
Explanation: Answer reason: Citrus fruits are rich sources of ascorbic acid, known as Vitamin C.
The highest incidence of marasmus is seen in?
- Newborn
- Infancy
- Toddler group
- School-going children
Explanation: Answer reason: Marasmus, a severe calorie deficiency form of protein-energy malnutrition, occurs most commonly in infants under 1 year, often related to early weaning and inadequate caloric intake.
Vitamin was discovered for the first time by?
- Adored Funk
- Funk
- Alexander Fleming
- Robert Crow
Explanation: Answer reason: The discovery and naming of vitamins are credited to Casimir Funk (1912). Among the given choices, "Hunk" is a misspelling closest to Funk and is the best match.
The risk of stomach cancer has been linked to a deficiency of?
- Vitamin C
- Vitamin D
- Cobalt
- Nickel
Explanation: Answer reason: Vitamin C acts as an antioxidant that inhibits formation of carcinogenic nitrosamines in the stomach; deficiency increases gastric cancer risk.
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