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NURS 3210 CH 3 PPT

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40 Questions

What is the impact of decreased glomerular filtration rate on drug clearance in older adults?

Drugs are cleared less effectively due to decreased excretion.

What are some sensory deficits that may affect medication administration in older adults?

Visual, hearing, and cognitive deficits.

What is polypharmacy, and why is it a concern in medication administration for older adults?

Polypharmacy refers to taking multiple medications simultaneously, and it is a concern due to increased risk of adverse effects and interactions.

What is the purpose of the Beers criteria in medication administration?

To identify risk situations related to drug therapy.

What are some age-appropriate considerations for safe medication administration in pediatric patients?

Mixing medications to disguise taste, using age-appropriate terminology, and safety considerations.

What is the significance of verifying medication orders in medication administration?

To ensure accuracy and prevent medication errors.

What are some safety considerations for medication administration in older adults?

Take as directed, do not double-up doses or discontinue without guidance from prescriber, and be alert for polypharmacy.

What is the purpose of evaluating understanding of drug purpose, dose, and frequency in medication administration?

To ensure patient understanding and adherence to medication regimen.

What is the significance of using kilograms instead of pounds when calculating pediatric dosages?

To ensure accurate calculation of dosage based on body weight.

Why is it essential to assess comfort methods before, during, and after drug administration in pediatric patients?

To reduce anxiety and discomfort associated with medication administration.

What is the primary reason dosage calculations for pediatric patients differ from those for adults?

Immature liver and kidney function impairs drug metabolism and excretion.

What is a crucial consideration when administering medications to older adults?

Decline in organ function increases the risk of adverse effects and toxicity.

What is the purpose of verifying medication orders before administration?

To ensure the right medication, dosage, and patient.

What is the advantage of using the West nomogram in pediatric dosage calculations?

It provides a standardized method for calculating dosages based on body surface area.

What is a key aspect of medication safety protocols in pediatric settings?

Preparation of all equipment and supplies before administration.

Why is it important to have caregivers present during medication administration in pediatric patients?

To provide emotional support and assist with the administration process.

What is the primary consideration when calculating pediatric dosages?

The patient's weight in kilograms

How would you calculate the dose of acetaminophen for a pediatric patient weighing 18.5 pounds?

Convert the weight to kilograms, then use the ordered dose to calculate the safe range (e.g., 10 mg/kg x 8.4 kg = 84 mg)

What is the nurse's next action if the calculated dose exceeds the safe range?

Contact the prescriber immediately

Why is it not within the scope of practice for the nurse to administer only half the ordered dose?

The nurse is not authorized to make treatment changes without the prescriber's direction

What is the primary reason why the pharmacy cannot substitute the prescribed medication without the prescriber's direction?

The pharmacy requires the prescriber's direction to make treatment changes

What is the purpose of calculating the safe range for a prescribed medication?

To ensure the dose is within the recommended limits and does not pose a risk to the patient

What is the consequence of administering a medication dose that exceeds the safe range?

Potential harm or adverse effects to the patient

Why is it essential to verify medication orders before administration?

To ensure the correct dose, medication, and administration method are used to prevent medication errors

What factors affect the absorption of medications in pediatric patients, and how do these factors impact drug therapy?

Factors affecting absorption include gastric pH, gastric emptying, and intramuscular absorption. These factors impact drug therapy by altering the rate and extent of absorption, which can lead to variations in drug efficacy and toxicity.

How does the immaturity of the liver and kidneys in pediatric patients impact drug metabolism and excretion?

The immaturity of the liver and kidneys in pediatric patients affects drug metabolism and excretion, leading to reduced metabolism and excretion of drugs. This can result in increased drug levels and potential toxicity.

What considerations should be taken into account when verifying medication orders for pediatric patients?

When verifying medication orders for pediatric patients, considerations should include factors such as age, weight, and medical condition, as well as any allergies or sensitivities to medications.

How does the skin's thinness and permeability in pediatric patients impact transdermal medication administration?

The skin's thinness and permeability in pediatric patients increase the risk of percutaneous absorption, which can lead to increased systemic absorption and potential toxicity.

What role does the blood-brain barrier play in pediatric pharmacokinetics, and how does it impact drug therapy?

The immature blood-brain barrier in pediatric patients allows for increased penetration of drugs into the brain, which can lead to increased CNS effects and potential toxicity.

How do gastric pH and gastric emptying rates impact oral medication administration in pediatric patients?

Gastric pH and gastric emptying rates can impact the absorption of oral medications in pediatric patients, leading to variations in drug efficacy and toxicity.

What age-related considerations should be taken into account when administering medications to pediatric patients?

Age-related considerations include factors such as body composition, organ maturity, and developmental stage, which can impact drug pharmacokinetics and pharmacodynamics.

What safety protocols should be implemented to minimize medication errors in pediatric patients?

Safety protocols should include measures such as double-checking medication orders, using pediatric-specific dosing calculations, and implementing barcode scanning to minimize medication errors.

What is the primary consideration for medication administration in pediatric patients, and how does this impact the preparation of medications?

The primary consideration is the patient's age and weight, which affects the dosing and preparation of medications. Pediatric patients, such as 6-month-old B, cannot swallow pills and require liquid preparations, which must be calculated based on their weight to ensure safe administration.

What is the importance of verifying medication orders in pediatric patients, and what steps should the nurse take to ensure safe administration?

Verifying medication orders is crucial in pediatric patients to ensure safe administration. The nurse should verify the patient's weight, calculate the medication dose based on the patient's weight, and verify the medication order with a second RN before administration.

What are the medication safety protocols that the nurse should consider when administering medications to pediatric patients, and why are they important?

The nurse should consider the safe range of medications, verify the medication dose with a second RN, and calculate the dose based on the patient's weight. These protocols are important to ensure safe administration and prevent medication errors.

How does the nurse ensure accurate calculation of medication doses in pediatric patients, and what is the importance of using the correct weight?

The nurse ensures accurate calculation by using the patient's correct weight in kilograms, and calculating the dose based on the patient's weight. This is important to ensure safe administration and prevent medication errors.

What is the importance of documenting vital signs, such as fever, in pediatric patients receiving medications, and how does this impact medication administration?

Documenting vital signs, such as fever, is important to determine the need for medication administration. In this case, the patient's fever greater than 102.6 temporal indicates the need for acetaminophen administration.

How does the nurse administer medications to pediatric patients, such as 6-month-old B, and what are the considerations for safe administration?

The nurse administers medications to pediatric patients using oral syringes, which are common methods to instill the medication in the mouth of the young child. The nurse must consider the patient's age, weight, and ability to swallow or ingest medications.

What is the role of the charge nurse in ensuring safe medication administration in pediatric patients, and how does their experience impact patient care?

The charge nurse plays a crucial role in ensuring safe medication administration by providing guidance and support to the nurse, particularly in pediatric patients. Their experience and expertise in pediatric medication administration can impact patient care by ensuring safe and accurate administration of medications.

What is the calculation for determining the mg of medication per dose in pediatric patients, and how does this impact medication administration?

The calculation for determining the mg of medication per dose is based on the patient's weight in kilograms. In this case, the patient's weight is 18.5 pounds, which is converted to kilograms, and then the dose is calculated based on the prescribed dose of 10mg/kg/dose.

Study Notes

Older Adults: Pharmacokinetics

  • Decreased blood flow to the liver affects drug metabolism
  • Excretion is affected by: • Decreased glomerular filtration rate • Decreased number of nephrons • Drugs are cleared less effectively due to decreased excretion

Medication Administration Considerations

  • Assessment: • Age • Allergies to drugs and food • Dietary habits • Sensory, visual, hearing, cognitive, and motor-skill deficits • Financial status and limitations • List of all health-related care providers
  • Medication administration: • Listing of medications • Existence of polypharmacy • Self-medication practices • Laboratory test results • History of smoking and alcohol use • Risk situations related to drug therapy identified by the Beers criteria

Medication Administration Planning

  • Human Needs Statements: • Alteration in fluids and nutrients (less than body requirements) • Ineffective perception • Altered safety, risk for injury • Related to adverse effects • Related to idiosyncratic reactions

Medication Administration Implementation

  • Basic Nine Rights of medication administration
  • Pediatric considerations for safe administration: • Mixing medications to disguise taste • Age-appropriate terminology • Safety considerations
  • Older adult considerations for safe administration: • Take as directed; do not double-up doses or discontinue without guidance from prescriber • Safety considerations • Be alert for polypharmacy

Medication Administration Evaluation

  • Observe and monitor for therapeutic effects
  • Observe and monitor for adverse effects
  • Evaluate understanding of drug purpose, dose, dose frequency, adverse effects, and special considerations

Case Study: Pediatric Patient

  • Calculate the dose of acetaminophen for a 6-month-old patient
  • Factors affecting pediatric drug dosages: • Thin and permeable skin • Stomach lacks acid to kill bacteria • Lungs have weaker mucous barriers • Body temperatures less well regulated, and dehydration occurs easily • Liver and kidneys are immature, impairing drug metabolism and excretion

Neonatal and Pediatric Considerations: Pharmacokinetics

  • Absorption: • Gastric pH less acidic until 1 to 2 years of age • Gastric emptying slowed • First-pass elimination is reduced due to an immature liver • Intramuscular absorption faster and irregular
  • Distribution: • Greater total body water means lower fat content • Decreased level of protein binding • Immature blood–brain barrier—more drugs enter the brain
  • Metabolism: • Liver immature; does not produce enough microsomal enzymes • Older children may have increased metabolism, requiring higher doses than infants • Other factors
  • Excretion: • Kidney immaturity affects glomerular filtration rate and tubular secretion • Decreased perfusion rate of the kidneys may reduce excretion of drugs

This quiz covers pharmacokinetics and pharmacodynamics in older adults, including factors affecting medication clearance and problematic medications.

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