_____ cells are working cells of the heart that contain contractile filaments and form the muscular layer of the atrial walls and the thicker muscular layer of the ventricular walls
a. Pacemaker
b. Myocardial
c. Specialized
d. Electrical
B
Myocardial cells (working or mechanical cells) contain contractile filaments. When these cells are electrically stimulated, the contractile filaments slide together, and the myocardial cell contracts.
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A patient with end-stage renal failure also has anemia. What therapy is likely to be most effective?
A) Kidney transplant B) Frequent blood transfusions C) Erythropoietin therapy D) Folate supplementation
When bathing a patient with a deep vein thrombosis in the left leg, the nurse will modify the attention to the left leg by:
a. washing the leg with long, firm strokes and drying with a towel. b. omitting washing the leg at all. c. gently washing the leg and patting dry with a towel. d. applying lotion in long, smooth strokes.
Which of the following statements is phrased as a problem for a quantitative study?
1. Is the best method for improving the life of caregivers of individuals with Alzheimer's disease known? 2. What will decrease the recovery time of clients who are undergoing a major surgical procedure? 3. Is music as effective as beta blockers in improving cardiac output in clients who have been hospitalized after suffering a myocardial infarction? 4. What will increase the quality of life of terminally ill clients?
A school-age client with a history of multiple allergies is prescribed epinephrine (EpiPen) for prevention of anaphylactic shock
The client's mother says to the nurse, "I thought shock was about heart failure." Which response by the nurse is the most appropriate? A) "Allergic response is the most fatal type of shock; other types involve loss of blood, heart failure, and liver failure." B) "Heart failure is the most serious kind of shock; others include infection, kidney failure, and loss of blood." C) "There are many kinds of shock that also include infection, nervous system damage, and loss of blood." D) "There are many kinds of shock: heart failure, nervous system damage, loss of blood, and respiratory failure."