Which of the following is true about a patient diagnosed with sinus arrhythmia?
a. The heart rate varies, dependent on vagal tone and respiratory pattern.
b. Immediate treatment is essential to prevent death.
c. Sinus arrhythmia is not well tolerated by most patients.
d. PR and QRS interval measurements are prolonged.
A
Sinus arrhythmia is a cyclical change in heart rate that is associated with respiration. The heart rate increases slightly during inspiration and slows slightly during exhalation because of changes in vagal tone. The ECG tracing demonstrates an alternating pattern of faster and slower heart rate that changes with the respiratory cycle. Interval measurements are normal. This rhythm is tolerated well, and no treatment is required.
You might also like to view...
The pediatric nurse educator is preparing a teaching plan for seizure prevention for parents of children with seizures. Which of the following can trigger seizures?
Select all that apply. a. Fever b. Video games c. Sleep deprivation d. Food allergens e. Mood-altering substances
When planning care for a patient that has a history of alcohol abuse, the nurse recognizes which of the following medication(s) will interact with alcohol? (Select all that apply.)
a. Analgesics c. Antidepressants b. Antibiotics d. Antipyretics
A patient comes into the emergency department with severe burns over the face, arms, legs, and back after spending the day boating with friends. The skin is dry and very red with brisk capillary refill. How would the nurse classify this patient's burn injuries?
1. Superficial 2. Deep partial thickness 3. Superficial partial thickness 4. Full thickness
The student wants information about a patient’s renal function. What test does the healthcare professional tell the student to evaluate?
a. Glomerular filtration rate b. Hourly urine output c. Serum blood urea nitrogen and creatinine d. The specific gravity of the solute concentration of the urine