Veterinary Hospital Patient Chart
Print-ready daily cage sheet with automatic dose calculations, fluid therapy rates and a 24 hour treatment grid: vitals and care tasks on top, medications and IV fluids below, every due time highlighted so nothing gets missed. Designed by Dr Duncan Houston.
Start with the patient
The body weight drives every dose, fluid rate and feeding target on this chart.
Flag what the team must know
Positive warnings print as colour-coded alert chips across the top of the sheet.
Plan the fluids
Maintenance, dehydration deficit and ongoing losses, with a potassium safety check.
Build the 24 hour chart
Every order you add lands on the midnight-to-midnight grid at its due times.
Build one clear order at a time. Standard medications, monitoring tasks and specialised treatments are separated into roomy, responsive entry panels.
Add a medication or treatment
Enter the order, dose and schedule. Weight-based doses are calculated from the patient weight above.
Add monitoring and care tasks
Add observations such as temperature, pain score, blood glucose, feeding or walks. Click its chart cells later to enter results.
Specialised treatment tools
Open only the calculator or treatment builder you need.
CRI / syringe driver calculator
NGT feeding (nasogastric tube)
Nebulisation (solution made up with 0.9% saline)
Oxygen therapy
Scroll the chart sideways to reach the later hours.
For veterinary professional use only. This chart is a calculation and organisation aid. Always confirm drug choice, dose, concentration, route, frequency and compatibility against the product label and current formulary before administration. Current weight-based orders recalculate when body weight changes; recorded administrations retain their original dose and weight snapshots. Check the working shown for every calculated dose.
For veterinary professional use only. This chart is a calculation and organisation aid. Always confirm drug choice, dose, concentration, route, frequency and compatibility against the product label and current formulary before administration. Current weight-based orders recalculate when body weight changes; recorded administrations retain their original dose and weight snapshots. Check the working shown for every calculated dose.
Reference information
Quick answer: this is a free veterinary hospital patient chart and 24 hour treatment sheet. Enter the patient’s weight and it automatically calculates drug doses in mg and ml, IV fluid rates (maintenance + dehydration deficit + ongoing losses) with a potassium safety check, and the resting energy requirement (RER = 70 × kg0.75 kcal/day). Medications and monitoring tasks are highlighted at their due times on a midnight-to-midnight grid, ready to print or copy into your records. Built by emergency veterinarian Dr Duncan Houston.
How to use this hospital chart
Fill in the patient details first: the body weight (kg or lb) drives every calculation on the page. Set code status and patient behaviour first: behaviour stays beside the patient name, while positive nursing warnings such as infectious, cytotoxic, seizure watch, special diet and NPO become bold, colour-coded alert chips at the top of the printed sheet. Plan the fluids, add each medication with its dose and frequency, add monitoring tasks such as temperature or pain score, then print the A4 landscape treatment sheet or copy the plain-text summary into your practice management software. Cells cycle from due to given with one click, and monitoring cells accept typed values.
RER and maintenance fluid reference table
Resting energy requirement uses RER = 70 × body weight (kg)0.75 kcal/day, the standard exponential formula for both dogs and cats. Maintenance fluid rates use 132 × kg0.75 ml/day for dogs and 80 × kg0.75 ml/day for cats. Hospitalised patients are usually started at 1 × RER, divided into several small meals.
| Weight (kg) | Weight (lb) | RER (kcal/day) | Dog maintenance (ml/hr) | Cat maintenance (ml/hr) |
|---|---|---|---|---|
| 1 | 2.205 | 70 | 5.5 | 3.333 |
| 2 | 4.409 | 117.7 | 9.25 | 5.606 |
| 3 | 6.614 | 159.6 | 12.54 | 7.598 |
| 4 | 8.818 | 198 | 15.56 | 9.428 |
| 5 | 11.02 | 234.1 | 18.39 | 11.15 |
| 7.5 | 16.53 | 317.2 | 24.93 | 15.11 |
| 10 | 22.05 | 393.6 | 30.93 | 18.74 |
| 15 | 33.07 | 533.5 | 41.92 | 25.41 |
| 20 | 44.09 | 662 | 52.02 | 31.52 |
| 25 | 55.12 | 782.6 | 61.49 | 37.27 |
| 30 | 66.14 | 897.3 | 70.5 | 42.73 |
| 35 | 77.16 | 1,007 | 79.14 | 47.97 |
| 40 | 88.18 | 1,113 | 87.48 | 53.02 |
| 50 | 110.2 | 1,316 | 103.4 | 62.68 |
| 60 | 132.3 | 1,509 | 118.6 | 71.86 |
Potassium supplementation in IV fluids
Potassium chloride is added to the bag using a serum-potassium sliding scale, but the number that keeps patients safe is the infusion rate: potassium must not exceed 0.5 mmol/kg/hr. The calculator computes the actual delivery from the final bag concentration, pump rate and body weight, and prevents an over-limit or incomplete potassium plan from being added to the chart. Never bolus KCl-supplemented fluids; mix the bag thoroughly and use an infusion pump. Common sliding scale (per litre of fluids):
| Serum potassium (mmol/L) | KCl added to fluids (mmol/L) |
|---|---|
| > 5.0 | None — do not supplement a hyperkalaemic patient unless specifically directed |
| 3.6 to 5.0 | 20 |
| 3.0 to 3.5 | 30 |
| 2.5 to 2.9 | 40 |
| 2.0 to 2.4 | 60 |
| < 2.0 | 80 |
Chart abbreviations
| Term | Meaning |
|---|---|
| SID / BID / TID / QID | Once, twice, three times, four times daily (q24h, q12h, q8h, q6h) |
| q4h, q6h, q8h | Every 4, 6 or 8 hours |
| PRN | Pro re nata: give only if needed |
| CRI | Constant rate infusion (continuous) |
| NPO | Nil per os: nothing by mouth |
| NGT | Nasogastric tube (feeding or suction) |
| INH / Neb | Inhaled / nebulised medication |
| HFNO | High-flow nasal oxygen (dosed in L/kg/min) |
| CPR / DNR | Attempt resuscitation / do not resuscitate |
| RER / MER | Resting / maintenance energy requirement (kcal/day) |
| IV / IM / SC / PO / OTM | Intravenous, intramuscular, subcutaneous, by mouth, oral transmucosal |
Frequently asked questions
How do you calculate a drug dose in ml for a dog or cat?
Multiply the dose rate (mg/kg) by the body weight (kg) for the total dose in mg, then divide by the concentration (mg/ml) for the volume. 10 mg/kg in a 20 kg dog at 50 mg/ml is 200 mg = 4 ml. The chart shows this working on every row and recalculates if the weight changes.
What is the resting energy requirement (RER) for a dog or cat?
RER = 70 × body weight (kg)0.75 kcal/day. A 20 kg dog is about 662 kcal/day; a 4 kg cat about 198 kcal/day. Hospitalised patients usually start at 1 × RER split into several small meals.
How do you calculate an IV fluid rate for a dog or cat?
Total rate = maintenance + dehydration deficit + ongoing losses. This tool calculates each component, displays the working and keeps shock resuscitation separate from the ongoing 24-hour crystalloid plan.
What does PRN mean on a veterinary hospital chart?
PRN means the medication or treatment is given only when needed. Scheduled PRN cells are shown differently from mandatory doses so eligible times do not imply that every dose must be administered.
What does NPO mean?
NPO means nil per os, or nothing by mouth. Enter the exact start and end time plus any water instructions, then mark the restriction on the hourly chart.
What is barrier nursing?
Barrier nursing uses contact precautions such as gloves or full PPE to protect patients and staff and reduce cross-contamination. An infectious patient cannot be finalised until a barrier level is selected.
What should a veterinary hospitalisation sheet include?
It should include patient identity, body weight, CPR or DNR status, behaviour, safety flags, fluid orders, medication doses and schedules, monitoring tasks, feeding and NPO instructions, recorded administrations and the veterinarian in charge.
How much potassium can be added to IV fluids?
KCl is dosed into the bag on a sliding scale (commonly 20 to 80 mmol/L when indicated), but do not supplement a hyperkalaemic patient (for example serum potassium above 5.0 mmol/L) unless specifically directed. It must never be infused faster than 0.5 mmol/kg/hr. The calculator checks the delivery rate and prevents an over-limit plan from being added to the treatment chart.
What does q8h PRN mean?
The drug has eligible times every 8 hours, but each dose is given only if the patient needs it. On this chart PRN doses appear as dashed cells so they read differently from mandatory scheduled doses.
Can I chart in pounds instead of kilograms?
Yes. Toggle the weight unit to lb and the value converts in place. All doses, fluid rates and RER are still calculated correctly in kilograms underneath.
How do you work out what fraction of a tablet to give a dog or cat?
Divide the calculated dose in mg by the tablet strength: 100 mg from 200 mg tablets is 1/2 a tablet. Tablets split practically into quarters, so this chart rounds to the nearest quarter, shows the actual mg delivered, warns when rounding moves the dose more than 10%, and tells you to use a smaller strength or liquid when the answer is under 1/4 of a tablet.
How is nasogastric (NGT) tube feeding charted in hospital?
Either as a CRI in ml/hr marked hourly from its selected start time, or as bolus feeds of a set volume every 2 to 8 hours, with NGT suction volumes recorded in the monitoring cells when the tube is also used for decompression.
Can I print this as a daily cage sheet?
Yes. It prints as an A4 landscape sheet for one 24 hour day, with vitals and care tasks in the top section and medications and IV fluids below. Due times print as boxes for initials, safety alerts print across the top, five blank “Other” lines at the bottom let the vet handwrite any medication added after printing, and “Start next day” generates tomorrow’s sheet in one click.
How do you chart oxygen therapy for a dog or cat?
Record the rate, start time and delivery method: nasal prongs, cannula, ET tube, mask, flow-by, cage, hood or incubator in L/min, or high-flow nasal oxygen in L/kg/min. This chart computes the total flow from the patient’s weight for high-flow, records a target FiO2 for cages, and marks oxygen hourly from its selected start time.
How is nebulisation charted in a veterinary hospital?
The mixture, total volume made up with 0.9% saline, run time in minutes and interval are all recorded, and each scheduled nebulisation is highlighted on the grid. Inhaled medications chart with the INH route.
Editorial policy: calculations follow widely used veterinary references and are shown in full so any clinician can verify them. This chart is a professional aid and does not replace clinical judgement. Reviewed 20 August 2026.
References and further reading: 2024 AAHA Fluid Therapy Guidelines for Dogs and Cats; Merck Veterinary Manual potassium supplementation table; DailyMed veterinary sodium bicarbonate labelling (calcium admixture incompatibility); DiBartola SP, Fluid, Electrolyte and Acid-Base Disorders in Small Animal Practice; WSAVA Global Nutrition Guidelines (RER and feeding); Silverstein DC, Hopper K, Small Animal Critical Care Medicine; Plumb’s Veterinary Drug Handbook (drug concentrations and dose rates).
Part of the ASK A VET™ veterinary tool suite. See also the anaesthetic and sedation drug calculator and the veterinary herbal medicine calculator.