A positive signal-averaged ECG indicates that the patient
a. has had a heart attack.
b. is at increased risk of sudden cardiac death.
c. has no heart disease.
d. has no need for an electrophysiology study.
B
A positive signal-averaged electrocardiogram (ECG)—in combination with other specific indicators—is a predictor of increased risk for sudden cardiac death. Many patients with a positive signal-averaged ECG (abnormal) display a normal signal-averaged ECG when placed on antidysrhythmic medications. The signal-averaged ECG is not analyzed in isolation. It is used in conjunction with other cardiac diagnostic tests, including the electrophysiology study (EPS). It is a helpful adjunct to the EPS but does not replace it.
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A normal maintenance dose for digoxin is 0.125 to 0.5 mg/day. In which of the following patients would the nurse most likely administer a lower-than-normal maintenance dose of digoxin?
A) A 25-year-old male with congestive heart failure and atrial fibrillation B) A 32-year-old female with cardiomegaly C) A 79-year-old male with cardiomegaly D) A 42-year-old female with a third heart sound
37.6 ° c = _____ ° f
a. 99.7 b. 101.4 c. 98.7 d. 101.2
Due to health concerns for high-risk populations, Healthy People 2020 includes as one of its main goals
A. To provide better insurance programs B. To have collaboration among governmental agencies C. To provide access to preventive health-care services D. To improve assessment of services
Which goals are appropriate for a patient with a traumatic injury and an ineffective breathing pattern? Note: Credit will be given only if all correct choices and no incorrect choices are selected. Select all that apply
1. Provide oxygen 100% therapy through a nonrebreather mask. 2. Restore the normal breathing pattern. 3. Maintain a calm environment to decrease oxygen demands. 4. Prevent sepsis 5. Maintain balanced hydration