Electrocardiogram

Doridosine. Doridosine, AJ -methyhsoguanosine, (35) was isolated from the dorid nudibranchs of Anisodoris nobilis and the sponge, Tedania (106,107). The injection of (35) into the saphenous vein of anesthetized rats produces hypotension and bradycardia almost immediately. The observed changes in the electrocardiograms are minor and indicate Httie interference with conduction of the impulse within the heart (see Cardiovascularagents). 

A disease predisposing those affected to severe cardiac arrhythmia. The term long QT syndrome refers to an abnormality found in the electrocardiograms of the patients a long QT interval caused by a prolonged... 

Subjective data (ie, the patient s complaints or description of symptoms) also are obtained at this time The primary health care provider usually orders an electrocardiogram. Additional diagnostic studies and laboratory tests also may be ordered. 

During tiie ongoing assessment, tiie nurse assesses the respiratory status every 4 hours and whenever tiie drug is administered. The nurse notes the respiratory rate, lung sounds, and use of accessory muscles in breathing, hi addition, tiie nurse keeps a careful record of the intake and output and reports any imbalance, which may indicate a fluid overload or excessive diuresis. It is important to monitor any patient with a history of cardiovascular problems for chest pain and changes in the electrocardiogram. The primary health care provider may order periodic pulmonary function tests, particularly for patients with emphysema or bronchitis, to help monitor respiratory status. 

Serum levels (digoxin) may be ordered daily during the period of digitalization and periodically during maintenance therapy. Periodic electrocardiograms, serum electrolytes, hepatic and renal function tests, and other laboratory studies also may be ordered. 

An arrhythmia may occur as a result of heart disease or from a disorder that affects cardiovascular function. Conditions such as emotional stress, hypoxia, and electrolyte imbalance also may trigger an arrhythmia An electrocardiogram (ECG) provides a record of the electrical activity of the heart. Careful interpretation of the ECG along with a thorough physical assessment is necessary to determine the cause and type of arrhythmia The goal of antiarrhythmic drug therapy is to restore normal cardiac function and to prevent life-threatening arrhythmias. 

There are a few absolute contraindications for deep peeling, mainly physical or mental instability. During pregnancy and lactation any cosmetic intervention is considered undesirable. All patients are required to perform electrocardiogram and complete blood count prior to the procedure. Any heart disease requires special precautions and it is always recommended to work in cooperation with the patient s cardiologist. 

Bernreiter M Electrocardiogram of patient in ana- 21 phylactic shock. JAMA 1959 170 1628. 

Figure 7. Electrocardiograms of rats at 30 to 90 min after beginning a 1-hr infusion of PbTx-2 (25 fig/kg). Bottom tracing is a representative ECG of a normal rat.

Indicated for patients with ischemic symptoms of <12 h in duration and 12-lead electrocardiogram (ECG) evidence of ... 

History (previous crises, previous medications, recreational drug use), physical examination (mandatory fundoscopic examination, blood pressure on all limbs), urinalysis, and electrolytes, blood urea nitrogen, creatinine, peripheral blood smear, complete blood count, electrocardiogram (ECG), chest X-ray, and head CT... 

Central nervous system depression with normal vital signs and normal electrocardiogram... 

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