What is the normal P-R interval?

a. 0.02 to 0.04 second
b. 0.05 to 0.l0 second
c. 0.12 to 0.20 second
d. 0.21 to 0.30 second


ANS: C
The normal P-R interval is 0.12 to 0.20 second.

Nursing

You might also like to view...

The nurse interviewing a client who is having difficulty staying focused could best help the client by

saying a. "Go on.". b. "What would you like to discuss?" c. "Tell me what is happening right now.". d. "It seems as though you are having trouble staying focused.".

Nursing

The nurse recognizes which of the following alternative therapies as appropriate in the care of cancer clients? Select all that apply

A) Reminiscing B) Patient-controlled analgesia C) Hot and cold therapy D) Epidural stimulators E) Alternating analgesics F) Nonopioid use

Nursing

The nurse is caring for a patient in the critical care unit who, after being declared brain dead, is being managed by the OPO transplant coordinator

Thirty minutes into the shift, assessment by the nurse includes a blood pressure 75/50 mm Hg, heart rate 85 beats/min, and respiratory rate 12 breaths/min via assist/control ventilation. The oxygen saturation (SpO2) is 99% and core temperature 93.8° F. Which physician order should the nurse implement first? a. Apply forced air warming device to keep temperature > 96.8° b. Obtain basic metabolic panel every 4 hours until surgery c. Begin phenylephrine (Neo-Synephrine) for systolic BP < 90 mm Hg d. Draw arterial blood gas every 4 hours until surgery

Nursing

The patient is scheduled to begin treatment with the disease-modifying antirheumatic drug methotrexate. In order to avoid a life-threatening adverse effect of the drug, the patient should receive a frequent assessment of:

a. Heart rate b. Breath sounds c. Bowel sounds d. Mental status

Nursing