Weight-Based Dosage Calculations Desired-Over-Have Nursing School NCLEX Review

RegisteredNurseRN
18 Apr 202215:08
EducationalLearning
32 Likes 10 Comments

TLDRThe video script outlines a step-by-step guide for calculating weight-based dosages using the Desired Overhab formula method. It covers various scenarios, including converting patient weight from pounds to kilograms, calculating milligrams per dose, and determining the volume of medication to be administered based on the patient's weight and the prescribed dosage. The guide is practical, informative, and aims to enhance understanding of dosage calculations for healthcare professionals.

Takeaways
  • 📝 The video provides a tutorial on weight-based dosage calculations using the Desired Overhab formula method.
  • 🤒 It explains how to convert a patient's weight from pounds to kilograms using the metric conversion factor (1 kg = 2.2 lbs).
  • 💊 The script walks through multiple examples of dosage calculations for different medication orders and patient weights.
  • 🔢 The first example involves calculating a dose of 4 milligrams per kilogram, requiring weight conversion and applying the formula to find the correct dosage in milligrams.
  • 📈 The second example deals with a 0.50 microgram per kilogram order, where the weight is converted, and the formula is applied to find the dose in micrograms.
  • 💉 A third scenario involves a 50 units per kilogram order for a patient, with a medication vial containing 5000 units per ml, and the calculation results in the volume in milliliters to be administered.
  • 🕒 The fourth example is about an IV infusion with a 400 micrograms per kilogram per hour order, and the medication bag has a concentration of 250 milligrams per 100 ml.
  • 🔄 The script emphasizes the importance of unit conversion, particularly from micrograms to milligrams, to ensure compatibility for calculation purposes.
  • 🎯 The Desired Overhab formula method is key to solving these dosage problems, and the video offers a step-by-step guide on its application.
  • 📚 The video also mentions the availability of a free quiz for additional practice on dosage calculation problems.
  • 👩‍⚕️ The target audience for this video script includes healthcare professionals or students who need to understand dosage calculations based on patient weight.
Q & A

  • What is the purpose of the video?

    -The purpose of the video is to demonstrate how to solve weight-based dosage calculations using the desired overhab formula method.

  • How does the video begin?

    -The video begins with Sara introducing herself and the website registerednessrn.com, and stating the aim of the video, which is to solve weight-based dosage calculations.

  • What is the first dosage calculation problem presented in the video?

    -The first problem involves a physician ordering 4 milligrams per kilogram per dose for a patient weighing 130 pounds, and the task is to calculate the correct dosage in milligrams based on the patient's weight.

  • How is the patient's weight converted from pounds to kilograms?

    -The patient's weight is converted from pounds to kilograms by dividing the weight in pounds by 2.2, as 1 kilogram equals 2.2 pounds.

  • What is the formula used to calculate the desired dosage?

    -The formula used to calculate the desired dosage is (Desired dosage in units / (per kg)) * (Patient's weight in kg).

  • How many milligrams per dose does the patient in the first problem need?

    -The patient in the first problem needs 236.4 milligrams per dose, after converting their weight to kilograms and applying the formula.

  • What is the second problem in the video about?

    -The second problem is about calculating the dosage for a patient weighing 40 pounds when the physician has ordered 0.50 micrograms per kilogram per dose.

  • How many micrograms per dose does the patient in the second problem need?

    -The patient in the second problem needs 9.1 micrograms per dose, after converting their weight to kilograms and applying the formula.

  • What is unique about the third problem compared to the first two?

    -The third problem is unique because it involves calculating the volume (in milliliters) of a medication to be administered to the patient, rather than just the dosage in units.

  • How does the video handle the conversion of dosage units in the third problem?

    -In the third problem, the video first calculates the desired dosage in units based on the patient's weight, and then uses the medication's concentration (units per ml) to determine the volume in milliliters to be administered.

  • What is the final dosage calculation problem presented in the video?

    -The final problem involves an IV infusion where the physician has ordered 400 micrograms per kilogram per hour for a patient weighing 195 pounds, and the medication bag contains 250 milligrams per 100 ml.

  • How many milliliters per hour does the patient in the final problem need?

    -The patient in the final problem needs 14 milliliters per hour, after converting the desired dosage to milliliters using the medication's concentration and applying the formula.

Outlines
00:00
📝 Weight-Based Dosage Calculations - Desired Overhab Method

This paragraph introduces the topic of weight-based dosage calculations using the Desired Overhab method. The speaker, Sara, explains that the video will guide through solving problems using this method. A quiz for additional practice is mentioned as a resource after the video. The first problem involves converting a patient's weight from pounds to kilograms and calculating the dosage in milligrams per dose based on the physician's order of 4 milligrams per kilogram. The conversion factor used is 1 kilogram equals 2.2 pounds. The patient's weight of 130 pounds is converted to 59.1 kilograms, and the calculation results in a required dose of 236.4 milligrams per dose.

05:01
💉 Dosage Calculation for Different Medications

This paragraph continues the discussion on dosage calculations, presenting additional scenarios. The first scenario involves a patient weighing 40 pounds and a physician's order of 0.50 micrograms per kilogram per dose. The patient's weight is converted to 18.2 kilograms, resulting in a required dose of 9.1 micrograms per dose. The second scenario involves a patient weighing 180 pounds needing a subcutaneous injection of 50 units per kilogram per dose. The medication vial contains 5,000 units per mL, and the calculation yields a required volume of 0.82 mL per dose. The third scenario is an IV infusion with a physician's order of 400 micrograms per kilogram per hour for a 195-pound patient. The medication bag contains 250 milligrams per 100 mL, and after converting the dose to milliliters, the required infusion rate is 14 milliliters per hour.

10:02
📊 Solving IV Infusion Problems with Weight-Based Dosage

This paragraph focuses on solving IV infusion problems using weight-based dosage calculations. The speaker explains the process of converting the patient's weight to kilograms and calculating the desired dose based on the physician's order. The example provided involves an order of 400 micrograms per kilogram per hour for a patient weighing 195 pounds. The patient's weight is converted to 88.6 kilograms, and the desired dose is calculated to be 35,440 micrograms. The speaker then explains the need to convert this dose to milligrams to match the dosage strength on the medication bag, which is 250 milligrams per 100 mL. The final calculation results in an infusion rate of 14 milliliters per hour.

15:03
🔗 Additional Resources for Dosage Calculation

In this final paragraph, the speaker provides a brief conclusion to the video and offers additional resources for learning more about dosage calculations. The audience is directed to a link in the YouTube description for further practice quizzes and videos on the topic of dosage calculations.

Mindmap
Keywords
💡Weight-based dosage
Weight-based dosage is a method of calculating the appropriate amount of medication based on a patient's weight. This approach ensures that the medication is tailored to the individual's size and weight, optimizing its effectiveness and minimizing the risk of adverse effects. In the video, the nurse uses this method to calculate dosages for patients with different weights and ordered dosages, such as 4 milligrams per kilogram for a patient weighing 130 pounds.
💡Conversion factors
Conversion factors are used to translate measurements from one unit to another. In the context of the video, conversion factors are essential for converting a patient's weight from pounds to kilograms, which is necessary for weight-based dosage calculations. The video uses the conversion factor of 1 kilogram being equal to 2.2 pounds.
💡Desired Overhab formula method
The Desired Overhab formula method is a technique used for calculating the correct dosage of medication for a patient based on their weight and the prescribed dosage by a physician. This method helps healthcare professionals to ensure that patients receive the appropriate amount of medication for their body weight, which is crucial for the medication's efficacy and safety.
💡Medication strength
Medication strength refers to the concentration of the active ingredient in a medication. It is expressed in various units, such as milligrams, micrograms, or units, and is critical for determining the correct dosage. Understanding medication strength is essential for healthcare professionals to prescribe and administer the right amount of medication to patients.
💡Pharmacological calculations
Pharmacological calculations involve the mathematical processes used to determine the correct dosage of medication for a patient. These calculations are crucial in ensuring that patients receive the appropriate amount of medication to achieve the desired therapeutic effect while minimizing the risk of adverse effects.
💡Metric table
A metric table is a reference guide that provides conversion factors between different units of measurement within the metric system. It is used to facilitate the conversion of measurements from one unit to another, such as from pounds to kilograms, which is essential for accurate dosage calculations in healthcare.
💡IV infusion
IV infusion refers to the process of delivering medication or fluids directly into a patient's bloodstream through a vein using a controlled infusion device. This method of administration allows for precise control over the rate and volume of medication delivered, which is particularly important for medications that require constant or weight-based dosing.
💡Medication bag labeling
Medication bag labeling refers to the information provided on the packaging or labeling of medication vials or bags, which includes details such as the medication's name, concentration, dosage form, and other critical information. This information is essential for healthcare professionals to ensure correct medication administration and to perform accurate dosage calculations.
💡Unit conversion
Unit conversion is the process of changing a measurement from one unit to another. In healthcare, unit conversion is often necessary to match the units of different measurements, such as converting micrograms to milligrams, to perform calculations and ensure accurate medication dosing.
💡Rounding
Rounding is a mathematical technique used to adjust a number to the nearest whole or decimal value. In healthcare, rounding is important for dosage calculations to ensure that the administered dosage is practical and safe. For example, rounding may be necessary when calculating the volume of medication to be administered, especially when the calculated value is very close to a whole number.
💡Practice quiz
A practice quiz is a tool used for educational purposes to help learners assess their understanding and application of a particular subject matter. In the context of the video, the practice quiz provides an opportunity for viewers to test their knowledge and skills in weight-based dosage calculations and pharmacological calculations.
Highlights

The video provides a comprehensive guide on solving weight-based dosage calculations using the desired overhab formula method.

The first example involves converting a patient's weight from pounds to kilograms, highlighting the importance of unit conversion in dosage calculation.

The video demonstrates how to calculate the correct dosage for a patient prescribed 4 milligrams per kilogram, given the patient's weight in pounds.

A practical application of the metric conversion is shown, using the conversion rate of 1 kilogram equals 2.2 pounds to calculate the patient's weight in kilograms.

The video explains the process of using the formula to determine the required dosage in milligrams based on the patient's weight in kilograms.

A second example is presented, this time involving a dosage prescription of 0.50 micrograms per kilogram, and the patient's weight in pounds.

The video details the conversion of the patient's weight from pounds to kilograms for the second dosage calculation, emphasizing the consistency in the process.

The calculation for the third example involves determining the volume of a medication in milliliters for a patient weighing 180 pounds, prescribed a dosage of 50 units per kilogram.

The video clarifies the additional step of converting the prescribed dosage units to match the medication's label units before calculating the volume to administer.

An IV infusion dosage calculation is covered in the fourth example, where the patient is prescribed 400 micrograms per kilogram per hour, and the medication bag contains 250 milligrams per 100 ml.

The video illustrates the multi-step process of converting the patient's weight to kilograms, calculating the desired dose in micrograms, and then converting to milligrams to match the medication's units.

The final dosage calculation example demonstrates the complexity of matching dosage units and calculating the correct volume of medication to be administered per hour.

The video concludes by summarizing the process of solving weight-based dosage calculations and encourages viewers to access more resources for practice.

Throughout the video, the presenter uses clear and concise language, making the complex calculations accessible to viewers.

The video is a valuable resource for healthcare professionals and students needing to understand and apply weight-based dosage calculations.

The step-by-step approach to each calculation ensures that viewers can follow along and understand the logic behind each step.

Transcripts

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Dosage CalculationsMedical MathDesired OverhabWeight ConversionPharmacy PracticeHealthcare EducationNursing SkillsMedication SafetyPharmacologyClinical Calculations