• How Stethoscope Works....

    A stethoscope is a medical device for listening to sounds inside the body. The initial stethoscope was invented in the early 19th century by French physician Ren� Laennec, but was actually trying to achieve a rather different end: doctor-patient distance....

  • Care Plan For Decreased Cardiac Output...

    Nursing diagnosis for decreased cardiac output may be related to altered myocardial contractility, inotropic changes; alterations in rate, rhythm, electrical conduction; or structural changes, such as valvular defects and ventricular aneurysm. ...

  • ECG Waveforms And Components

    The electrocardiogram (ECG) is a graphic recording ofelectric potentials generated by the heart.The signals are detected by means of metal electrodes attached to the extremities and chest wall and are then amplified and recorded by the electrocardiograph. ECG leads actually display the instantaneous differences in potential between these electrodes. ...

Thursday, October 24, 2013

Educational and Competency Requirements for The Administration and Supply of Medications by Nurses in Rural and Remote Areas

Following are the areas of responsibility that rural and remote nurses must accept if medication management is to become part of their legal practice.

Knowledge of Medicines:
Nurses should have contemporary knowledge of pharmacology for safe and appropriate nursing practice in rural and remote communities. The nurse also must have sound knowledge and skills relating to medications in their facility’s approved medication list. Another requirement is that the nurse should have reasonable access to and familiarity with the resources available for collaboration, consultation/reference in regards to the use of medications.
Relevant and appropriate clinical educational preparation and competency assessment will support best practice in the administration and supply of medication by registered nurses in rural and remote settings.

Knowledge of Law:
The nurse must have knowledge of the statutory and common laws, which govern medication use by registered nurses, for practice.
Civil laws, statutory acts and regulations establish the standard of the delivery of appropriate and safe care to patients. Knowledge of the legislative requirements is essential to ensure registered nurses’ practise within the law.

Assessment of Competency:
The practice of initiating, administering and supplying medications in rural or remote areas should be confined to registered nurses who have demonstrated competency in these areas.
An assessment of competency should include:
  • Knowledge and skills for patient assessment and diagnosis
  • An examination of medication knowledge.
  • A test of competency in medication calculations.
  • Knowledge of the medication schedules as they impact on clinical practice.
  • A clinical/practical assessment of compliance with protocols in the practice context.
Knowledge of clinical assessment and medication use is essential to enable the nurse to make an informed decision about the initiation of safe and appropriate treatment. Competency in medication/IV calculations may reduce the risk of dose/rate errors. It is the nurse’s responsibility to have knowledge of current schedules to practise in accordance with the relevant legislation. Current literature indicates that a significant number of nursing students have serious numeracy skill deficits and that even if these skills are mastered, they can deteriorate if not continually exercised.

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Sunday, October 13, 2013

Materials of Bandaging

Bandaging is both a science and an art. The proper bandage, properly applied, can aid materially in the recovery of the patient. A improperly or carelessly applied bandage can cause discomfort to the patient and may imperil his life.

Bandages are employed to hold dressings, to secure splints, to create pressure, to immobilize (make immovable) joints and in correcting deformity. Bandages should never be used directly over a wound. They should only be used over a dressing.

Various materials, such as gauze, flannel, crinoline, muslin, linen, rubber, and elastic webbing are employed in making bandages. Gauze is used most frequently because it is light, soft, thin, porous, readily adjusted, and easily applied. Flannel, being soft and elastic, may be applied smoothly and evenly, and as it absorbs moisture and maintains body heat, is very useful for certain conditions. Crinoline, rather than ordinary gauze, is used in making plaster of paris bandages, the mesh of the crinoline holding the plaster more satisfactorily than gauze. Muslin is employed in making bandages because it is strong, inexpensive, readily obtainable, and can be used more than once. For the latter reason, muslin bandages are usually employed in bandage practice. Muslin should be soaked in water to cause shrinkage, dried, and finally ironed to remove wrinkles. A large piece of this material may be easily torn into strips of the desired width. Rubber and elastic webbing are used to afford firm support to a part. The webbing is preferable to the pure rubber bandage. It permits the evaporation of moisture.

Bandage material is commonly made into either a triangular bandage, a roller bandage, or a manytailed bandage.

 

 
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Friday, October 11, 2013

ECG Waveforms And Components

The electrocardiogram (ECG) is a graphic recording ofelectric potentials generated by the heart.The signals are detected by means of metal electrodes attached to the extremities and chest wall and are then amplified and recorded by the electrocardiograph. ECG leads actually display the instantaneous differences in potential between these electrodes.
The clinical utility of the ECG derives from its immediate availability as a noninvasive, inexpensive, and highly versatile test. In addition to its use in detecting arrhythmias, conduction disturbances, and myocardial ischemia, electrocardiography may reveal other findings related to life-threatening metabolic disturbances (e.g., hyperkalemia) or increased susceptibility to sudden cardiac death (e.g., QT prolongation syndromes). The widespread use of coronary fibrinolysis and acute percutaneous coronary interventions in the early therapy of acute myocardial infarction has refocused attention on the sensitivity and specificity of ECG signs of myocardial ischemia.
An electrocardiogram (ECG) waveform has three basic components: the P wave, QRS complex, and T wave. These elements can be further divided into the PR interval, J point, ST segment, U wave, and QT interval.
P wave and PR interval
The P wave represents atrial depolarization. The PR interval represents the time it takes an impulse to travel from the atria through the atrioventricular nodes and bundle of His. The PR interval measures from the beginning of the P wave to the beginning of the QRS complex.
QRS complex
The QRS complex represents ventricular depolarization (the time it takes for the impulse to travel through the bundle branches to the Purkinje fibers).
The Q wave appears as the first negative deflection in the QRS complex; the R wave, as the first positive deflection. The S wave appears as the second negative deflection or the first negative deflection after the R wave.
J point and ST segment
Marking the end of the QRS complex, the J point also indicates the beginning of the ST segment. The ST segment represents part of ventricular repolarization.
T wave and U wave
Usually following the same deflection pattern as the P wave, the T wave represents ventricular repolarization. The U wave follows the T wave, but isn't always seen.
QT interval
The QT interval represents ventricular depolarization and repolarization. It extends from the beginning of the QRS complex to the end of the T wave.
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Friday, October 4, 2013

What Are Involve at Planning of Care?

Planning involves three subsets: setting priorities, writing expected outcomes, and establishing target dates. Planning sets the stage for writing nursing actions by establishing where we are going with our plan of care. Planning further assists in the final phase of evaluation by defining the standard against which we will measure progress.
Setting Priorities
With the sicker, quicker problem discussed earlier, you are going to find yourself in the situation of having identified many more problems than can possibly be resolved in a 1- to 3-day hospitalization (today’s average length of stay). In the long-term care facilities, such as home health, rehabilitation, and nursing homes, long-range problem solving is possible, but setting priorities of care is still necessary.
Several methods of assigning priorities are available. Some nurses assign priorities based on the life threat posed by a problem. For example, Ineffective Airway Clearance would pose more of a threat to life than the diagnosis Risk for Impaired Skin Integrity. Some nurses base their prioritization on Maslow’s Hierarchy of Needs. In this instance, physiologic needs would require attention before social needs. One way to establish priorities is to simply ask the patient which problem he or she would like to pay attention to first. Another way to establish priorities is to analyze the relationships between problems. For example, a patient has been admitted with a medical diagnosis of headaches and possible brain tumor. The patient exhibits the defining characteristics of both Pain and Anxiety. In this instance, we might want to implement nursing actions to reduce anxiety, knowing that if the anxiety is not reduced, pain control actions will not be successful. Once priorities have been established, you are ready to establish expected outcomes.
Expected Outcomes
Outcomes, goals, and objectives are terms that are frequently used interchangeably because all indicate the end point we will use to measure the effectiveness of our plan of care.
Several guidelines for writing clinically useful expected outcomes:
  1. Expected outcomes are clearly stated in terms of patient behavior or observable assessment factors.
  2. Expected outcomes are realistic, achievable, safe, and acceptable from the patient’s viewpoint.
  3. Expected outcomes are written in specific, concrete terms depicting patient action.
  4. Expected outcomes are directly observable by use of at least one of the five senses.
  5. Expected outcomes are patient centered rather than nurse centered.
Establishing Target Dates
Writing a target date at the end of the expected outcome statement facilitates the plan of care in several ways:
  1. Assists in “pacing” the care plan. Pacing helps keep the focus on the patient’s progress.
  2. Serves to motivate both patients and nurses toward accomplishing the expected outcome.
  3. Helps patient and nurse see accomplishments.
  4. Alerts nurse when to evaluate care plan.
Target dates can be realistically established by paying attention to the usual progress and prognosis connected with the patient’s medical and nursing diagnoses. Additional review of the data collected during the initial assessment helps indicate individual factors to be considered in establishing the date. For example, one of the previous expected outcomes was stated as “Accurately return-demonstrates self-administration of insulin by 9/11.”
The progress or prognosis according to the patient’s medical and nursing diagnosis will not be highly significant. The primary factor will be whether diabetes mellitus is a new diagnosis for the patient or is a recurring problem for a patient who has had diabetes mellitus for several years.
For the newly diagnosed patient, we would probably want our deadline day to be 5 to 7 days from the date of learning the diagnosis. For the recurring problem, we might establish the target date to be 2 to 3 days from the date of diagnosis. The difference is, of course, the patient’s knowledge base.
Now look at an example related to the progress issue. Mr. X is a 19-year-old college student who was admitted early this morning with a medical diagnosis of acute appendicitis. He has just returned from surgery following an appendectomy. One of the nursing diagnoses for Mr. X would, in all probability, be Pain. The expected outcome could be “Will have decrease in number of requests for analgesics by [date].” In reviewing the general progress of a young patient with this medical and nursing diagnosis, we know that generally analgesic requirements start decreasing within 48 to 72 hours. Therefore, we would want to establish our target date as 2 to 3 days following the day of surgery. This would result in the objective reading (assume date of surgery was 11/1): “Will have decrease in number of requests for analgesics by 11/3.”
To further emphasize the target date, it is suggested that the date be underlined, highlighted by using a different-colored pen, or circled to make it stand out. Pinpointing the date in such a manner emphasizes that evaluation of progress toward achievement of the expected outcome should be made on that date. In assigning the dates, be sure not to schedule all the diagnoses and expected outcomes for evaluation on the same date. Such scheduling would require a total revision of the plan of care, which could contribute to not keeping the plan of care current. Being able to revise single portions of the plan of care facilitates use and updating of the plan. Remember that the target date does not mean the expected outcome must be totally achieved by that time; instead, the target date signifies the evaluation date.
Once expected outcomes have been written, you are then ready to focus on the next phase—implementation. As previously indicated, the title supported by this book for this section is “Nursing Actions.”
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