Which of the following components are considered micro nutrients?

Appeared in: RUHS, Jaipur, M.Sc Nursing Entrance Exam-2022

Explanation

Vitamins and minerals are essential nutrients required by the body in very small amounts for various physiological functions.
The prefix 'micro' refers to this small-scale requirement, which is typically measured in milligrams or micrograms.
Unlike macronutrients, micronutrients do not provide energy (calories) but act as coenzymes and cofactors in metabolic reactions, support immune function, and aid in growth and development.

Option B: Both carbohydrates and fats are macronutrients.
Option C: Protein is a macronutrient, and water is required in large volumes, not micro amounts.
Option D: Carbohydrates are macronutrients, and water is required in large quantities.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of Nutrients: Macronutrients vs. Micronutrients as background academic context rather than a clinical decision trigger.
Nurses play a crucial role in nutritional assessment, identifying patients at risk for micronutrient deficiencies (e.g., iron-deficiency anemia, scurvy from vitamin C deficiency) or toxicities.
Patient education on balanced diets is a key nursing intervention to ensure adequate intake of both macro- and micronutrients for disease prevention and health promotion.
What if? A patient on a long-term, highly restrictive diet (e.g., a strict vegan diet) presents for a check-up. The nurse should be vigilant for potential micronutrient deficiencies like Vitamin B12, iron, and calcium, and advocate for appropriate screening.

How to Approach the Question

First, analyze the term 'micro nutrients'. The prefix 'micro' signifies 'small'.
The question is asking to identify nutrients that the body needs in small quantities.
Recall the basic classification of nutrients. Carbohydrates, fats, and proteins are the body's main sources of energy and building blocks, required in large amounts (grams). They are 'macro' (large) nutrients.
Water is also essential and required in large volumes daily for hydration and bodily functions.
Vitamins and minerals are required in trace amounts (milligrams or micrograms) to facilitate metabolic processes and other functions.
Based on this, evaluate the options. Only 'Vitamins & minerals' fits the definition of micronutrients.

Concept Tested & Keywords

Q8hTzQDlsPktucyr9bNjZf

E6 Nursing Fundamentals Taylor p. 492-494

E6 textbook of Applied Biochemistry and Nutrition & DieteticsHarbans Lal (pp 26-464 of 479) p. 241-243

E6 Nutrition Monika Sharma 3e p. 54-56

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