Dr. Calvin is giving a lecture on the properties of cardiac tissue. During the lecture, he states that the conduction tissue of the heart does not require any external stimulus to initiate its contractions. It has the ability to initiate its own electrical stimulation. To demonstrate this property, Dr. Calvin dissects a frog and places its heart in a petri dish with Ringer's solution. He then asks his students to observe how the frog's heart continues to beat without any external stimulation. Based on the information provided in this scenario, which property of the heart is Dr. Calvin trying to demonstrate?
A. Rigidity
B. Autorhythmicity
C. Elasticity
D. Contractility
Answer: B
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What type of planning has the administrative staff done? 1. Strategic 2. Contingency 3. Organizational 4. Directive
A client is diagnosed with a disorder that affects the production of glucocorticoids in the body. Which affects should the nurse expect because of this disorder? (Select all that apply.)
1. Heightened response to pain 2. Increased blood glucose level 3. Increased lipolysis from fatty acids 4. Protein breakdown in times of stress 5. Difficulty with carbohydrate metabolism
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a. notifies the primary care provider that the client has been self-medicating for hay fever b. compares the client's current blood pressure to his/her baseline blood pressure c. stresses the need to avoid over-the-counter (OTC) medications containing monoamines d. suggests that the client stop taking the herb until the hay fever has improved
Which will the nurse assess during the healthcare practices portion of the cultural assessment?
1) Level of activity 2) Dietary intake 3) Alcohol consumption 4) Skin color