Which part of the heart normally controls the heart rate?

a. Atrioventricular (AV) node
b. His-Purkinje system
c. Sinoatrial (SA) node
d. Left ventricle


ANS: C

Nursing

You might also like to view...

An order states that a drug should be administered on an empty stomach. This generally means that the nurse should give the drug when? You may select more than one answer

A. One hour or more before a meal B. Only after an 8-hour fast C. Only after the patient has missed a meal D. At least 2 hours after a meal E. With liquids but not solids within 12 hours

Nursing

A child is being treated for acute lymphocytic leukemia (ALL). The laboratory report shows a white blood cell count of 7,000/mm3. The nursing care plan would include which of the following nursing diagnosis as a priority for this client?

1. Activity Intolerance 2. Risk for Infection 3. Impaired Gas Exchange 4. Readiness for Enhanced Immunization Status

Nursing

A nurse wishes to administer 1500 mL of an IV infusion to a client over a 12-hour period. If the administration set is calibrated to deliver 15 gtt/mL, at what infusion rate should the solution be administered?

a. 31 gtt/min c. 15 gtt/min b. 40 gtt/min d. 50 gtt/min

Nursing

When using a bulb syringe to suction the secretions of an infant just delivered, which of the following should be suctioned first?

A) Nose B) Trachea C) Pharynx D) Mouth

Nursing