The question asks to identify the method of feeding where nutrients are administered directly into the veins.

Understanding Parenteral Nutrition

Parenteral nutrition involves delivering nutrients, such as carbohydrates, proteins, fats, vitamins, and minerals, directly into the bloodstream via an intravenous (IV) line. This method bypasses the digestive system entirely.

It is essential for patients who cannot absorb nutrients adequately through their gastrointestinal tract due to illness, surgery, or other medical conditions.

Analyzing Feeding Options

Let's review the given options:

• Parenteral nutrition: This is the correct term for feeding directly into the veins.
• Enteral nutrition: This involves feeding through the gastrointestinal tract (e.g., using a feeding tube into the stomach or intestines).
• Nasogastric nutrition: This is a specific type of enteral nutrition using a tube passed through the nose into the stomach.
• Saline nutrition: While saline solutions are given intravenously for hydration and electrolyte balance, they do not typically provide complete nutrition in the way implied by 'food'.

Based on the definitions, giving food directly in the veins is specifically called Parenteral nutrition.