Which of the following is true of Class 2 antiarrhythmic drugs?
A. They tend to shorten the cardiac refractory period.
B. They decrease heart rate, atrioventricular (AV) conduction, and automaticity of the sinoatrial (SA) and AV nodes.
C. They increase the excitability, conduction, and automaticity of ventricular muscle.
D. They are mainly indicated for arrhythmias that originate below the AV node.
Answer: B
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The nurse is reviewing new orders written for a client experiencing respiratory alkalosis. Which orders would be appropriate for this client's care needs?
Select all that apply. A) Oxygen 2 liters via face mask B) Restrict fluids to 2 liters per day. C) Admit to a private room. D) Infuse 1 ampule of sodium bicarbonate now. E) Draw arterial blood gases.
The nurse is reviewing the results of a patient's cardiac output curve and notes that the size of the curve is small. Which of the following does this finding indicate?
1. A low cardiac output 2. Poor injection technique 3. Incorrect placement of the catheter 4. A high cardiac output
When caring for a client receiving an immunosuppressant agent, the nurse should report which of the following values?
a. leukocyte count of 15,000 cells/mm3 c. neutrophil count 450 cells/mm3 b. leukocyte count of 1,300 cells/mm3 d. neutrophil count over 500 cells/mm3
After eating two bites of a sandwich, a client with anorexia nervosa states, "I feel too full.". The nurse recognizes this as:
A) Perfectionistic behavior. B) Alexithymia. C) Refusal to eat. D) Purging behavior.