Showing posts with label Medical Education. Show all posts
Showing posts with label Medical Education. Show all posts

Saturday, August 29, 2015

Teething in Infants


Teething is the phenomena accompanying growth of teeth through the gums. The effect of teething on infant health has been debated for at least 5000 years, and traditional beliefs on the issue have still not been entirely superseded by scientific findings. Sumerians believed teething and worm infestation were associated. Hindu writings, as well as work by Aristotle, Homer, Celsus, and others, describe associations between teething and illness. Many of these authors implicated tooth emergence in childhood mortality. The belief that teething led to childhood mortality, seizures, diarrhea, fever, or other serious conditions was criticized as early as the 17th century by Francois Ranchin. Yet in 1839, 5016 deaths in England and Wales were attributed to teething. Illingworth wrote in 1975 that “teething produces nothing but teeth.” However, as recently as 1979, parents and physicians were identifying teething as a cause of presenting symptoms in children admitted to the hospital. A medical evaluation of 50 of these children showed that in 48 cases the symptoms, ranging from upper respiratory infection to bacterial meningitis. Most medical professionals now agree that teething does not cause life-threatening illness, but they disagree about which symptoms may be associated with tooth eruption.

Teething in Infants

However several studies with different study designs has revealed symptoms believed to be associated with teething such as loss of appetite for solids and liquids, drooling, biting or chewing various objects, congestion or runny nose, cough, sleep disturbances, restlessness and irritability, rash, spitting up or vomiting, and diarrhea and fever or mild temperature elevation. Anyhow It is important to inform parents that none of these symptoms consistently and accurately predict when teething is about to occur and any of other organic disorders should be ruled out in infants with these symptoms.
The recommended intervention for teething is the use of cold items because the cold acts as an anesthetic for the gums. Refrigerated pacifiers, Spoons, Clean wet washcloths, Frozen bagels or bananas, refrigerated teething rings can be offered to the infants at this stage.Topical teething gels sold over-the-counter (OTC) are often used for teething but may carry serious risks, including local reactions, seizures with overdose, and methemoglobinemia. Benzocaine containing teething gels should not be used in infants or children under 2 years of age. If necessary, parents should be instructed on proper dosing of analgesic medications, such as acetaminophen or ibuprofen.


Wednesday, July 8, 2015

Problem based learning (PBL)


“True learning is based on discovery guided by mentoring rather than the transmission of knowledge.”

John Dewey

Introduction and History

In simple terms Problem-based learning (PBL) is a student centred education in which students learn about a subject through the experience of creating a problem. Problem- based learning or what we simply called PBL is based on research in the cognitive sciences on how we learn.
This educational strategy was developed at the McMaster University Medical School in Canada in the 1960s in medical education. Efficacy of this revolutionary learning method has made it popular among educationists and It is one of the big success stories in the education in the past few years.   But nowadays PBL is developed and implemented in a wide range of domains around the world. This approach empowers learners to conduct research, integrate theory and practice, and apply knowledge and skills to develop a viable solution to a defined problem .In simple words this simple revolutionary idea that problems should come before answers drives PBL.  Beginning with a problem puts you in the driver’s seat.  You can use your previous knowledge, your hunches, and your wildest ideas to try for a solution.  In the process you can develop an inventory of what you know and what you need to know to get to a solution.  Once you know that you can start questioning your instructor or your classmates, plundering the library, surfing the net, or bugging the many excellent experts to fill your needs. 

What is the difference between Subject based learning and Problem Based learning


What is wrong with the old teacher stand up and talk student sit and listen learning?  It doesn’t meet the needs.  It is too slow, too shallow, too inefficient and not much fun.  Students retain little of what they learn after even a few weeks.  Students rarely can apply what they have learned to the unpredictable problems of life and work. Students get little practice in developing their thinking skills and intellectuality or framing problems that interest them. As a result, students come to see learning as something grim to be avoided.
Problem based learning gives you opportunities to examine and try out what you already know; discover what you need to learn; develop your people skills for achieving higher performance in teams; improve your writing and speaking abilities, to state and defend with sound arguments and evidence your own ideas; and to become more flexible in your approach to problems that surprise and dismay others. Despite the work and effort it requires, PBL is never dull and is often fun.
Here is a diagram of the basic difference between subject based and problem based learning.


What is expected in Problem Based Learning?

According to the epistemological literature four types of knowledge can be identified.
  • 1     Explanatory knowledge-Theories
  • 2.       Descriptive Knowledge-Facts
  • 3.       Procedural Knowledge-Knowledge of how to do things
  • 4.       Subjective Knowledge- Personal convictions or attitudes of the learner

The PBL problems are in two varieties with regards to acquisition of above mentioned aspects of knowledge.
  • 1.       During the course of their study, students acquire different kinds of, or categories of knowledge about relevant aspects of their domain of study.
  • 2.       The problem types to be distinguished are meant to guide the learners towards these different knowledge categories.

In a problem based curricula four different kinds of problems have been identified.
  • ·         Explanation problems
  • ·         Fact-finding problems
  • ·         Strategy problems
  • ·         Moral dilemma resolution problems

Respectively they are effective in achieving explanatory knowledge, descriptive knowledge, procedural knowledge and subjective knowledge. Teacher, Mentor, or Guiding body has the freedom of designing the problems to drive learners to achieve the desired aspect of knowledge. Ideally it should be the combinations of all.

Characteristics of PBL

According to Barrows in 1996 there are six core characteristics of PBL are distinguished.
  • The first characteristic is that learning needs to be student-centred.
  • Second, learning has to occur in small student groups under the guidance of a tutor.
  • The third characteristic refers to the tutor as a facilitator or guide.
  • Fourth, authentic problems are primarily encountered in the learning sequence, before any preparation or study has occurred.
  • Fifth, the problems encountered are used as a tool to achieve the required knowledge and the problem-solving skills necessary to eventually solve the problem.
  • Finally, new information needs to be acquired through self-directed learning.

It is generally recognized that a seventh characteristic should be added: Essential for PBL is that students learn by analysing and solving representative problems. However authors also describes following features as essential components in PBL as well.
Students must have the responsibility for their own learning. The tutor is only a facilitator in this learning process.
The problem simulations used in problem-based learning must be ill-structured and allow for free inquiry. The real world problems are ill-structured and PBL should allow the trainers to develop their skill to identify the problem and develop realistic solutions.
Learning should be integrated from a wide range of disciplines or subjects. During PBL students should be able to access, study and integrate information from all the disciplines and reach to a more robust solution. The development of information systems and multidisciplinary approach in the present world support this task more than ever before.
Collaboration is essential. PBL provides the platform to share information and work productively with fellow people.
What students learn during their self-directed learning must be applied back to the problem with reanalysis and resolution.
A closing analysis of what has been learned from work with the problem and a discussion of what concepts and principles have been learned are essential.
Self and peer assessment should be carried out at the completion of each problem and at the end of every curricular unit.
The activities carried out in problem-based learning must be those valued in the real world.
Student examinations must measure student progress towards the goals of problem-based learning.
“Problem-based learning must be the pedagogical base in the curriculum and not part of a didactic curriculum.”

Rules in problem design

  • ·         Problem should consist of a title
  • ·         Well-formed problem consist of a concrete body text
  • ·         Each problem needs and instruction as to what to do with it
  • ·         A problem should be connected to the prior knowledge base students have
  • ·         A problem should raise students curiocity
  • ·         A problem should only introduce a limited number of issues for learning
  • ·         A problem should not take too much self-directed study time to acquire a fair understanding of the issues at hand

Advantages and Disadvantages of PBL

As in any educational theory there are advantages and limitations found in literature when creating or implementing problem based learning curriculum. Some of the advantages which were perceived by several authors are as follow.
  • ·        Students interest and benefit
  • ·        Minimizing faculty workload
  • ·        Long-term knowledge retention
  • ·        PBL provide a more challenging
  • ·        Motivating and enjoyable approach to education
  • ·        Students become actively engaged in meaningful learning rather than traditional memorization
  • ·        Increased responsibility for their learning and self-direction


Higher levels of comprehension and skill development occur than in traditional instruction and develop interpersonal collaboration and team work.

Following disadvantages has been encountered in PBL according to literature.

 Lack of systematic learning as in traditional learning in which the information is delivered in a well arranged manner

Difficulty in allocating time required in a course schedule

Students often express difficulties with self-directed learning whereas the teachers may have difficulties to break their traditional teaching habits.

Also selecting the appropriate question will be critical and challenging too.

However the traditional student assessment systems should be changed in assessing a student who was trained on PBL.

Summary

PBL has becoming a revolutionary method of leaning in the context of student centred learning. At the heart of PBL stands a problem. PBL process can be designed in the way the students achieve the different aspects of knowledge. As in any learning method PBL also has its own advantages and disadvantages.




Friday, June 26, 2015

Work place based assessments

What is Work place based assessment (WBA)?

The primary purpose of WPBA is to provide short loop feedback between trainers and their trainees – a formative assessment to support learning. They are designed to be mainly trainee driven but may be triggered or guided by the trainer.

What is the Purpose of WBA?

Several purposes of WBA has been identified. WBA helps to form a comprehensive assessment system, blueprinted to important curriculum requirements. It also provides educational feedback on which to reflect and develop practice. Another purpose of WBA is it provides a reference point on which to compare past, current and future levels of competence. WBA also supports remedial / targeted training and Provides evidence of progression. At the end of WBA it informs summative assessment

Benefits of WBA

Main benefit of WBA is it has a strong educational impact. Availability of clinical materials and skilled teachers are other benefits of WBA. Some other benefits of WBA are,
       WBA is Based on observable performance and specific criteria
       Encompasses skills, knowledge, behaviour and attitudes including judgement and leadership
       Provides descriptors to aid the assessor’s judgement
       Samples across important workplace tasks
       Encourages trainee/trainer dialogue
       Can identify those in need of additional support
       Encourages reflection to improve practice
       Provides a personal trajectory of progress
       Indicates readiness for summative tests

Position of work place based assessment in Miller’s Pyramid


Preparation for WBA

First most important fact in WBA is Patient consent and safety must be assured by the assessor. Also the assessors should be trained in the tool and have expertise in the area being assessed. Reliability of assessing can be improved by using on a range of different assessors. It Should be used in different settings with different cases.

Use of WBA

       Trainee led and  trainer guided
       Structured forms should inform debriefing
       Feedback immediately after observation
       Written feedback should describe performance
       WBA should be followed by reflection by the trainee
       Use more often for trainees who need remedial support
       Judge the trainee against the standard at the end point 
       The interaction between trainee and trainer is key

Trainee role

       Triggers WBA, in line with the LA
       Puts the safety of the patient first
       Agrees case and time with assessor in advance
       Ensures sufficient WBAs are completed throughout placement
       Uploads to the portfolio comments accurately within 2  weeks of assessment
       Respects confidentiality of patients and colleagues
       Reflects on feedback
       Follows up action plans

 

Assessor role

       Must be appropriately qualified in the relevant discipline
       Must be trained on  the WBA method
       Ensures consent and safety of patient
       Carries out observation and provides feedback
       Completes / checks online form and signs to validate
       Keeps the AES informed of issues or concerns

Criteria for feedback

There should be a written record describing performance to look back on.
Good quality feedback should:
       Reinforce what was done well
       Explain areas for development
       Suggest appropriate corrective action

Barriers to WBA

       Unintentionally seen as threatening (e.g. as mini-exams)
       Low ratings are seen as failures by trainees (and some trainers)
       Lack of trainer time, especially senior trainers

Actions to overcome barriers

       Provide faculty development  and trainee induction
       Promote WBA as opportunities for learning
       Written feedback puts ratings in context
       Low scores should be seen as the norm early on
       Provide time in job plans for those in key roles to use WBAs and discuss concerns

Utility of assessment

Refers to the relative value of using a type of assessment.
The criteria are:
       Reliability
       Validity
       Acceptability to users
       Feasibility of use
       Educational impact
It is unlikely that one assessment type will cover all these areas
The challenge is to improve the utility of all types of assessment to enhance the overall assessment system.

Reliability


Enhanced by:
       Assessor training
       Use of a range of assessors
       Use of all WBA methods
       Use of WBA frequently
       Triangulation with other assessments

Validity

Enhanced by:
       Blueprinting to curriculum and GMP
       Linking WBA with clear objectives within a structured a learning agreement
       Direct observation of workplace tasks
       Increasing complexity of tasks in line with progression through the training programme

Acceptability

Enhanced by:
       Providing assessor training and trainee induction to enhance understanding of criteria, standards and methods
       Interaction between trainee and trainer

Feasibility

Enhanced by:
       Linking WBA with clear objectives, standards and a structured learning agreement
       Assessing what trainees would normally do in training situations
       Working feedback into normal dialogue

Educational Impact

Enhanced by:
       Supervised training and appraisal
       Clear objectives and learning agreement
       Learning opportunities
       Good quality feedback
       Reflection on feedback

The Learning Environment

An environment that supports learning will:
       Ensure everyone understands and values their role and that of others in the educational process
       Provide faculty development and trainee induction
       Make time for training and assessment
       Encourage performance beyond competency; an aspiration to excellence
       Encourage the development of reflective practitioners
       Provide professional educational support
       Support trainers in making difficult decisions or negative judgements
       Support for trainees in difficulty

Types of Work place based assessments

Mini  Clinical Examination (CEX)
The CEX traditionally involved observation of the trainee carrying out a thorough history taking and physical examination and presenting their findings and diagnosis, and a written report of conclusions for the supervising clinician to evaluate.
Case-based discussions
Case-based discussion (CbD) in medical Foundation Training is a structured discussion with an assessor of clinical cases managed by the foundation doctor. Its strength is assessment and discussion of clinical reasoning. The foundation doctor selects two case records from patients they have seen recently, and in whose notes they have made an entry. The assessor selects one of these for the CbD session. The discussion starts from and is centred on the foundation doctor’s own record in the notes. CbD assesses medical record keeping, clinical assessment, investigation and referral, treatment rationale, follow up and future planning, professionalism and overall clinical care. Feedback is provided to the trainee immediately following the discussion.
  
Direct Observation of Procedural Skills (DOPS)
Direct observation of procedural skills (DOPS) has been defined as the observation and evaluation of a procedural skill performed by a trainee on a real patient. Procedural skills are also known as technical or practical skills. Evaluation by an experienced practitioner is carried out using either a checklist of defined tasks, a global rating scale, or a combination of both.
  
360 Degree assessment
Multiple assessors Including senior colleagues, nurses, AHPs is done. This includes the self assessment as well. Student would be assessed for their routine performance. Ultimately the feedback is reviewed with trainee and supervisor on agreed action plan.

Portfolios
Snadden (1998) describes a portfolio as “a collection of evidence that learning has taken place which in practice includes documentation of learning and progression, an articulation of what has been learned, and a reflection on these learning events/experiences.” Portfolios are used both as a learning tool to stimulate reflective, experiential and deep learning and as an assessment method to judge progression towards or achievement of specific learning objectives, competencies or fitness to practice. Depending on the specialised purpose of the portfolio, its content including evidence required, and assessment criteria vary from context to context. Any portfolio that is used for assessment purposes should clearly articulate the amount, type and quality of evidence required to establish proof of competence and the marking criteria used to evaluate the quality of the evidence.



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