everything Flashcards
What is the drug of choice to treat torsades de pointes?
Magnesium
When the nurse is changing central line tubing, what should be patient be told to do?
the Valsalva maneuver
What is the “onset of action” of regular insulin/insulin aspart/Novolog?
5-10 minutes
What does S3 indicate?
Heart failure.
Hypokalemia causes what?
Premature ventricular contractions and paralytic ileus
Hypermagnesemia causes what?
Hypotension and respiratory muscle paralysis
Hypocalcemia causes what?
Stridor and paresthesias
What is the treatment for a conscious patient in VTach?
Synchronized cardioversion
How is the ankle-brachial index (ABI) calculated?
Divide the ankle pressure by the brachial pressure on the same side.
What is an important administration consideration for mannitol?
The drug must be administered through an in-line filter; it may crystalize.
The dicrotic notch on an intraaortic balloon pump (IABP) waveform represents what?
Closure of the aortic valve
Petechiae are the first sign of what?
Platelet dysfunction
A patient with a linear fracture of the temporal bone is at risk for?
epidural hematoma
What is Wolff-Parkinson-White syndrome?
An accessory pathway around AV node, causing loss of the normal delay in the AV node, which allows for completion of atrial contraction to complete ventricular diastole. This results in supraventricular tachycardias and decreased cardiac output.
What is the definitive treatment for Wolff-Parkinson-White syndrome?
Ablation
