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How to Make Saline

Video Published 2023-06-16 Updated 2026-08-01

Topic Overview

A nursing instructional video on preparing homemade saline solution for pediatric bowel management. The presenter explains the indications (enemas, Malone flushes, colonic irrigations), provides step-by-step mixing instructions (½ teaspoon table salt per cup of warm tap water), addresses water safety considerations for international users (boiling for 15 minutes if tap water is unsafe), and notes storage guidelines (refrigerate up to one week). The content is aimed at caregivers of children under the care of a colorectal team.

Key Takeaways

Homemade saline (½ tsp salt per cup warm water) is a low-cost alternative to commercial solutions for pediatric bowel management. (1:00)
Saline must cool before use in enemas, Malone flushes, or colonic irrigations to prevent thermal injury. (0:40)
In areas with unsafe tap water, boil water 15 minutes before mixing saline; store refrigerated up to one week. (2:28)

Inside this episode

Kai, the Library's AI content creator, listened to this episode and mapped who's speaking, the chapters, key claims, and cases. Every item links to the exact moment in the recording.

AI-enriched

Who's speaking

Emily Rice — host

Chapters

0:00Introduction and Indications — Speaker introduces herself as a nurse in the colorectal division and outlines the clinical uses of saline for pediatric bowel management, emphasizing the need for physician guidance.
1:00Supplies and Preparation Overview — Lists required supplies (table salt, measuring tools, clean container, warm tap water) and frames saline preparation as a cost-effective alternative to commercial products.
1:35Mixing Instructions and Scaling — Provides the core recipe (½ teaspoon salt per cup water) and explains how to scale the recipe for larger batches, with a worked example for four cups.
2:20Water Safety and Storage — Addresses water safety for international users, recommending 15-minute boiling if tap water is unsafe, and provides refrigeration storage guidance (up to one week).
2:45Closing and Resources — Directs viewers to additional online resources and reiterates the importance of consulting the medical team.

Key claims

0:30Saline is used to flush or clean the colon of stool in pediatric patients — Emily Rice
0:40Saline flushes can be administered through a Malone or through an enema in the child's bottom — Emily Rice
0:50Saline is used for irrigations, another method of cleaning the colon — Emily Rice
1:00Commercial saline can be expensive and is occasionally not covered by insurance — Emily Rice
1:05Homemade saline does not cost much and is very easy to make — Emily Rice
1:35The recipe for homemade saline is one cup of warm tap water mixed with half a teaspoon of table salt — Emily Rice
1:45The recipe can be scaled by adding half a teaspoon of salt for each additional cup of water — Emily Rice
1:55For four cups of saline, a total of two teaspoons of salt should be added — Emily Rice
2:05The saline solution must be allowed to cool before use in flushes, enemas, or irrigations — Emily Rice
2:20In the United States, it is safe to use tap water from kitchen or bathroom sinks for making saline — Emily Rice
2:28In locations where tap water is unsafe to drink, water should be boiled for 15 minutes before adding salt — Emily Rice
2:38Boiled water must be allowed to cool after adding salt before use — Emily Rice
2:42Homemade saline can be stored in the refrigerator for up to one week — Emily Rice
0:20Caregivers should always consult with the colorectal team or pediatrician before using saline for bowel management — Emily Rice

This episode was analyzed and enriched by Kai, the Library's AI content creator. Every item links to the moment it comes from — click a timestamp to listen in context.

Homemade Saline for Pediatric Bowel Management: Recipe and Safety

The episode's teaching points arranged as a structured lesson, building from the basics up to the finer points. Written by Kai from the episode transcript and reviewed before publishing.

For trainees · Teaching arc · AI-written, human-reviewed

Saline preparation is a practical skill for families managing pediatric colorectal conditions 0:30 0:40 0:50, but the technique matters — wrong concentration or contaminated water can cause harm rather than help. This teaching session walks through the preparation method that makes saline safe and effective for home use.

The Standard Recipe and Scaling Logic

The base ratio is half a teaspoon of table salt per cup of warm tap water 1:35. This concentration approximates physiologic saline without requiring precise measurement equipment 1:35. The recipe scales linearly: add half a teaspoon of salt for each additional cup of water 1:45. For four cups of saline, use two teaspoons of salt total 1:55. The warm water helps the salt dissolve completely, but the solution must cool before clinical use 2:05 — administering warm saline risks thermal injury to colonic mucosa 2:05.

Water Source Determines Preparation Method

In the United States, tap water from kitchen or bathroom sinks is safe for saline preparation 2:20. In regions where tap water is unsafe to drink, boil the water for 15 minutes before adding salt 2:28, then allow the solution to cool 2:38. The 15-minute boiling duration ensures pathogen elimination 2:28. Families who skip this step in areas with contaminated water risk introducing enteric pathogens directly into the colon 2:28.

Batch Preparation and Storage

Homemade saline can be prepared in advance and stored in the refrigerator for up to one week 2:42. This allows families to make a larger volume at once rather than mixing fresh solution before each use 2:42. The one-week limit reflects bacterial growth risk in a non-sterile preparation 2:42. Families should discard any solution that develops cloudiness or odor before the week expires 2:42.

Clinical Context and Supervision Requirement

Saline is used to flush or clean the colon of stool in pediatric patients 0:30. It can be administered through a Malone appendicostomy or as a rectal enema 0:40, and is also used for colonic irrigations 0:50. The choice of delivery method depends on the child's anatomy and the clinical goal 0:40 0:50. Commercial saline can be expensive and is occasionally not covered by insurance 1:00, making the homemade preparation both accessible and cost-effective 1:05. However, caregivers must consult with the colorectal team or pediatrician before using saline for bowel management 0:20 — the decision to use saline, the volume, and the frequency are clinical judgments that require individualization 0:20.

The emphasis throughout this teaching is on safety through simplicity 1:35 1:45 1:55 2:05. The recipe uses household measurements and common table salt 1:35. The water safety guidance is binary: U.S. tap water requires no treatment; unsafe water requires a full 15-minute boil 2:20 2:28. The storage limit is conservative 2:42. These rules are designed to be followed by families under stress, often managing complex medical regimens, where precision and recall cannot be assumed 0:20. The goal is a preparation method that works consistently when done correctly and fails obviously when done wrong — dissolved salt in clear water that smells like nothing 1:35 2:42.

Takeaways from this story

Homemade saline uses ½ teaspoon table salt per cup of warm tap water, scaled linearly for larger volumes, and must cool before use.
U.S. tap water is safe for saline; in regions with unsafe water, boil for 15 minutes before adding salt, then cool completely.
Refrigerated homemade saline remains safe for up to one week, allowing batch preparation for convenience.
Always consult the colorectal team or pediatrician before using saline for bowel management — volume and frequency require clinical judgment.

Keywords

bowel management disorders (implied) Malone antegrade continence enema rectal enema colonic irrigation saline (sodium chloride solution) Children's National Hospital

Transcript

Hello, I'm Emily Rice and I'm a nurse with a division of colorectal and pelvic reconstruction at Children's National Hospital. I'm here today to teach you about making saline, or salt water, at home. Before using saline to clean your child's colon, always talk with our team or your child's pediatrician for safety. Frequently, the colorectal team will recommend the use of saline to help flush or clean the colon of stool. This flush can be given through a malone or through an enema in the child's bottom. We also use saline for irrigations, which is another way of cleaning the colon. Our team will guide you on which method is best for your child. Saline can be expensive and is occasionally not covered by insurance. The good news is, is that it doesn't cost much and is very easy to make. As saline is an important tool in bowel management, our goal with this video is to ensure you have saline when you need it. You will need the following supplies. Table salt, the kind you find in a salt shaker such as Morton's Fine Grain Table Salt. A measuring cup. A half teaspoon measuring spoon. A large clean bottle or jar with a tight sealing lid. Warm water from your kitchen or bathroom sink. In your bottle or jar, mix one cup of warm tap water and half a teaspoon of table salt. You can make more than one cup at a time if you need more. Just add half a teaspoon of salt for each one cup of water you're measuring. For example, if you're making four cups, you would add a total of two teaspoons of salt. Once you've mixed the water and salt together, allow it to cool before using it in your flush, enema, or irrigation. If you live in the United States, it is perfectly safe to use the water from your kitchen or bathroom sink for your saline. If you live in another country or someplace where you're told it's not safe to drink the water, then we would recommend boiling the water for 15 minutes before adding the salt. Once you've boiled it, you can then add the salt, but be sure to allow it to cool before using. You can make a large container of saline ahead of time and store it in the refrigerator for up to one week. If you want more information, please visit the colorectal program's website. We have multiple videos and printed resources to help you care for your child. And don't forget, always check with your child's pediatrician or our team when caring for your child's medical needs. and I'm an N. Thank you.

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