Water soluble vitamins are vitamin-

Appeared in: NCL (MP) Nursing Officer - 2020

Explanation

The question asks to identify a water-soluble vitamin from the given options.
Vitamins are broadly classified based on their solubility into water-soluble and fat-soluble.
The water-soluble vitamins are the B-complex group (which includes B1, B2, B3, B6, B12, etc.) and Vitamin C.
Vitamin B, listed as an option, falls into the water-soluble category.
These vitamins dissolve in water, are not stored in significant amounts in the body, and any excess is excreted through urine, necessitating regular dietary intake.

Option A: Vitamin A is a fat-soluble vitamin, not a water-soluble vitamin. It is stored in the liver and fatty tissues.
Option B: Vitamin D is a fat-soluble vitamin. It plays a crucial role in calcium absorption and bone health and is stored in the body.
Option D: Vitamin K is a fat-soluble vitamin essential for blood clotting. It is stored in the body, and some amount is also synthesized by intestinal bacteria.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of vitamins (water-soluble vs. fat-soluble) as background academic context rather than a clinical decision trigger.
Understanding the difference between water-soluble and fat-soluble vitamins is crucial for patient education regarding diet and supplementation.
Nurses must be aware that deficiencies of water-soluble vitamins (like B vitamins) can develop relatively quickly, especially in patients with poor nutrition, alcoholism, or malabsorption syndromes.
Conversely, there is a higher risk of toxicity with fat-soluble vitamins (A, D, E, K) because they are stored in the body. This is a key safety consideration when administering supplements.

How to Approach the Question

This is a factual recall question that tests your basic knowledge of nutrition.
First, identify the key term in the question: 'Water soluble vitamins'.
Recall the two main classifications of vitamins: water-soluble and fat-soluble.
Mentally list the vitamins in each category. A common mnemonic for fat-soluble vitamins is 'ADEK'.
Scan the options provided: A, D, B, K.
Compare the options to your mental list. A, D, and K are all fat-soluble. Vitamin B is the only water-soluble vitamin listed. Therefore, it is the correct answer.

Concept Tested & Keywords

QJbnmzdvWpxSA3Lss1xsHr

E6 textbook of Applied Biochemistry and Nutrition & DieteticsHarbans Lal (pp 26-464 of 479) p. 287-289

E6 Biochemistry U Satyanarayana— Part 1 (pp 26-420 of 840) p. 108-110

E6 Pharmacology Nursing Lilley 11e Part 3 p. 201-203

Practise the full NCL (MP) Nursing Officer - 2020

Attempt every question from this paper in a timed mock, then review the full solution for each one.