During the cardiac cycle, which structure directly delivers action potential to the ventricular myocardium?
a. Sinoatrial (SA) node
b. Atrioventricular (AV) node
c. Purkinje fibers
d. Bundle branches
Answer: c. Purkinje fibers
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When assessing the skin of a middle-age man, the nurse notices a blue-red plaque on the patient's chest. This cutaneous skin manifestation is indicative of which of the following systemic diseases?
A) Kaposi's sarcoma B) Psoriasis C) Café-au-lait spot D) Syphilis
The precautionary principle affirms that, when there is reasonable suspicion of harm of a new product, process, intervention, or technology and scientific uncertainty regarding cause and effect of this harm, people:
a. should rely on the developer to assure product safety. b. have few legal rights related to preventing harm. c. have a duty to take action to prevent harm. d. have to prove cause and effect before taking action.
A client with a BMI > 40 is classified as:
1. Obese. 2. Overweight. 3. Underweight. 4. Morbidly obese.
A tumor is:
a. Cancer b. Stomatitis c. A new growth of abnormal cells d. A lump in a body part