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Related Concept Videos

Model-Independent Approaches for Pharmacokinetic Data: Noncompartmental Analysis00:59

Model-Independent Approaches for Pharmacokinetic Data: Noncompartmental Analysis

207
Noncompartmental analyses offer an alternative method for describing drug pharmacokinetics without relying on a specific compartmental model. In this approach, the drug's pharmacokinetics are assumed to be linear, with the terminal phase log-linear. This assumption allows for simplified analysis and interpretation of the drug's behavior in the body.
One important characteristic of noncompartmental analyses is that drug exposure increases proportionally with increasing doses. This...
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Analysis of Population Pharmacokinetic Data01:12

Analysis of Population Pharmacokinetic Data

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Analysis of population pharmacokinetic data involves studying the behavior of drugs within diverse populations to understand their pharmacokinetic parameters. Traditional pharmacokinetic methods typically involve collecting samples from a few individuals and estimating these parameters. While these methods are commonly used, they have limitations in capturing the variability in drug response among individuals or heterogeneous populations. Population pharmacokinetics is employed to address these...
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Dosage Regimens: Partial Pharmacokinetic Parameters01:01

Dosage Regimens: Partial Pharmacokinetic Parameters

72
It is not uncommon for complete drug pharmacokinetic profiles to remain elusive in pharmacokinetics. This necessitates certain educated assumptions by pharmacokineticists to determine appropriate dosage regimens without comprehensive pharmacokinetic data from animal or human studies. One prevalent assumption is setting the bioavailability factor, denoted as F, to 1 or 100%. This assumption caters to the scenario where a drug doesn't achieve full systemic absorption, resulting in the patient...
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Measurement of Bioavailability: Pharmacodynamic Methods01:20

Measurement of Bioavailability: Pharmacodynamic Methods

103
Pharmacodynamic methods provide insights into a drug's effects on physiological processes over time and play a crucial role in understanding bioavailability and therapeutic efficacy. These methods can be broadly classified into acute pharmacological and therapeutic response approaches, each with distinct mechanisms and applications.The acute pharmacological response method directly correlates a drug's physiological effects, such as ECG or pupil diameter changes, to its time course in the body.
103
Therapeutic Drug Monitoring: Drug Analysis Methods01:26

Therapeutic Drug Monitoring: Drug Analysis Methods

88
Therapeutic Drug Monitoring (TDM) is a clinical practice that measures specific drug levels in a patient's blood or body tissues to tailor drug therapy effectively. This monitoring is critical for managing drugs with narrow therapeutic indices like digoxin and phenytoin, ensuring they are both safe and effective. For instance, monitoring theophylline levels in asthma patients involves precision and sensitivity to adjust doses according to individual responses to therapy, ensuring efficacy and...
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Noncompartmental Analysis: Mean Residence Time01:05

Noncompartmental Analysis: Mean Residence Time

439
According to statistical moment theory, mean residence time (MRT) is an important measure in pharmacokinetics. MRT can be defined as the expected mean of a probability density function distribution. It provides valuable insights into drug disposition in the body.
After the administration of a drug through intravenous bolus injection, the drug molecules are distributed throughout the body and remain there for varying periods. The MRT represents the average time these drug molecules stay in the...
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Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
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How Hospital Pharmacists Spend Their Time: A Work-Sampling Study.

Daniel Wong1, Andrea Feere2, Vandad Yousefi3

  • 1, BSc(Pharm), ACPR, is a Clinical Pharmacist with the Royal Columbian Hospital, New Westminster, British Columbia.

The Canadian Journal of Hospital Pharmacy
|October 26, 2020
PubMed
Summary

Pharmacists dedicate most work time to clinical activities, but direct patient care is limited. Optimizing workflow could increase face-to-face patient interactions and improve comprehensive care.

Keywords:
activitiespharmacisttimework sampling

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Area of Science:

  • Pharmacy Practice
  • Health Services Research
  • Workforce Analysis

Background:

  • Expanded pharmacist roles increase patient care but also workload.
  • Limited data exists on how pharmacists allocate their time during workdays.
  • Understanding time allocation is crucial for optimizing pharmacy workflows.

Purpose of the Study:

  • To quantify time spent by hospital and clinic pharmacists on clinical (direct and indirect) and nonclinical activities.
  • To identify areas for potential workflow optimization in pharmacy practice.

Main Methods:

  • An observational work-sampling study was conducted at two hospitals.
  • Trained observers recorded pharmacist activities in 1-minute increments.
  • Activities were categorized into direct patient care, indirect patient care, and nonclinical tasks.

Main Results:

  • Clinical activities comprised 82% of observed time (12% direct, 70% indirect patient care).
  • Most common direct activity: medication history interviews (4%). Most common indirect activity: assessment and evaluation (29%).
  • Top nonclinical activities included walking (4%) and teaching (3%).

Conclusions:

  • Pharmacists spend a significant majority of their time on clinical activities.
  • Face-to-face patient time (direct care) appears low, indicating a need for improvement.
  • Documentation and assessment activities consume more time than chart notes for interprofessional communication.