• 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. ...

Wednesday, June 21, 2017

ADD/ADHD

Attention deficit disorder (ADD), formerly known as attention deficit/hyper-activity disorder (ADHD), is one of the most common mental disorders among children today. It is estimated that approximately 3 percent to 5 percent of all children (two to three times as many boys are affected than girls) or nearly 2 million American children (which correlates to one child in each classroom in the United States) have ADHD according...
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Tuesday, June 13, 2017

Nursing Diagnoses Organized According to Diagnostic Divisions (continued)

Elimination—ability to excrete waste products• Bowel Incontinence• Constipation• Constipation, perceived• Constipation, risk for• Diarrhea• Motility, dysfunctional gastrointestinal• Motility, risk for dysfunctional gastrointestinal• Urinary Elimination, impaired• Urinary Elimination, readiness for enhanced• Urinary Incontinence, functional• Urinary Incontinence, overflow• Urinary Incontinence, reflex• Urinary Incontinence, stress•...
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Monday, June 12, 2017

Nursing Diagnoses Organized According to Diagnostic Divisions

Activity/Rest—ability to engage in necessary or desired activities of life (work and leisure) and to obtain adequate sleep and rest • Activity Intolerance • Activity Intolerance, risk for • Activity Planning, ineffective • Disuse Syndrome, risk for • Diversional Activity, deficient • Fatigue • Insomnia • Lifestyle, sedentary • Mobility, impaired bed • Mobility, impaired wheelchair • Sleep, readiness for enhanced • Sleep Deprivation •...
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Thursday, June 8, 2017

ELECTROPHYSIOLOGY

Depolarization of the heart is the initiating event for cardiac contraction. The electric currents that spread through the heart are produced by three components: cardiac pacemaker cells, specialized conduction tissue, and the heart muscle itself.The ECG,however, records only the depolarization (stimulation) and repolarization (recovery)...
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Tuesday, April 18, 2017

Reference Ranges—Hematology and Coagulation

Reference Ranges—Hematology and Coagulation LABORATORY TEST NORMAL ADULT REFERENCE RANGE CLINICAL SIGNIFICANCE Conventional Units SI Units Bleeding Time 3-10 minutes 3-10 minutes ▪ Prolonged in thrombocytopenia, defective platelet function, and aspirin therapy D-dimer <250 mg/mL <250 mg/mL ▪ Increased in disseminated intravascular coagulation, malignancy, and arterial and venous thrombosis Erythrocyte...
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Ethical Core Concepts of Nursing Practice

Professional nurses occupy the frontlines of the health care arena. So, it is no surprise that they are the part of the health care team patients trust most with their health and welfare. Along with this privilege, nurses carry equal duties of responsibility and accountability to follow ethical principles and standards of care integral to the profession. Greater efforts must be made from within the profession to apply evidence-based...
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Monday, April 25, 2016

Preventing Patient Falls

Falls are a major cause of injury and death among elderly people. In fact, the older the person, the more likely he is to die of a fall or its complications.  Factors that contribute to falls among elderly patients include lengthy convalescent periods, a greater risk of incomplete recovery, medications, increasing physical disability, and impaired vision or hearing. If you're helping a fallen patient, send an assistant...
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