In the normal electrocardiogram, what does the PR interval represent?
a. Atrial depolarization
b. Ventricular depolarization
c. Atrial activation to onset of ventricular activity
d. Electrical systole of the ventricles
Answer: c. Atrial activation to onset of ventricular activity
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A nurse is planning care for a child with hyperkalemia. The nurse explains to the parents that an adverse outcome of hyperkalemia is:
1. Seizures. 2. Cardiac arrhythmias 3. Respiratory distress. 4. Hyperthermia.
The nurse is teaching the family of a child who is prescribed amphetamine mixed salts (Adderall) for attention-deficit/hyperactivity disorder (ADHD)
Which is the best time for the nurse to teach the family to administer the medication? A) Before lunch B) At bedtime C) With the evening meal D) Early in the morning
A client with a history of peptic ulcer disease is admitted for hematemesis associated with gastric bleeding. Which is the most appropriate action of the nurse?
A) Administer oxygen. B) Increase intravenous flow rate. C) Prepare for nasogastric irrigations. D) Lower the head of the bed.
A priority nursing diagnosis for a client with thick, copious, tenacious secretions is:
a. Risk for injury related to adverse effects of expectorants and antitussives. b. Deficient knowledge related to expectorants and antitussives. c. Ineffective airway clearance related to respiratory secretions. d. Fluid volume deficit related to thick secretions.