When the normal pacemaker is impaired and latent pacemaker cells in the AV node initiate the cardiac cycle, the nurse would clarify that this pacemaker is called the
a. altered pacemaker.
b. delayed pacemaker.
c. escape pacemaker.
d. junctional pacemaker.
C
The escape pacemaker is the "fail-safe" pacemaker that initiates the cardiac cycle in the absence or impairment of the normal SA node.
You might also like to view...
When measuring the head circumference of an infant, the nurse should place the tape measure:
a. across the eyebrows and around the occipital lobe. b. over the zygomatic arches and around the parietal areas. c. around forehead and around the crown of the head. d. above the eyebrows and pinnas and around the occipital lobe.
The nurse is caring for a client who has history of thrombosis. The client asks, "I never want to have another pulmonary embolus in the lung again
Is there something that can be done to prevent them?" Which options would the nurse state and encourage discussion with the physician? Select all that apply. A) Anticoagulant therapy B) A vena caval filter C) Thrombolytic therapy D) A vena caval plication E) A thrombectomy
A person diagnosed with syphilis presents with signs and symptoms of rash, sore throat, and muscle and joint pain. Which of the following stages of syphilis is the client most likely experi-encing?
a. Congenital b. Primary c. Secondary d. Tertiary
You suspect that your patient has polymyalgia rheumatica and now are concerned that the patient may also have Giant Cell Arteritis (GCA). Which of the following two symptoms are most indicative of GCA and PMR?
A. Jaw pain and heart murmur B. Joint swelling and sudden loss of central vision bilaterally C. Hoarseness and the total inability to grasp small objects D. Scalp tenderness and aching in shoulder and pelvic girdle