Which chamber of the heart has the greatest workload and usually fails first as a result?
a. Left atrium
b. Right atrium
c. Left ventricle
d. Right ventricle
ANS: C
The thicker walls of the left ventricle pump with approximately six times the force of the right ventricle. This difference in force is due to the great difference between systemic and pulmonary blood pressure.
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Which nursing statement regarding the concept of psychosis is most accurate?
1. Individuals experiencing psychoses are aware that their behaviors are maladaptive. 2. Individuals experiencing psychoses experience little distress. 3. Individuals experiencing psychoses are aware of experiencing psychological problems. 4. Individuals experiencing psychoses are based in reality.
Tapping the Achilles tendon just above its insertion in the heel normally results in contraction of the gastrocnemius, soleus, and plantaris muscles and
a. extension of the leg. c. plantar flexion of the foot. b. flexion of the leg. d. dorsiflexion of the foot.
The nurse is caring for a patient with a diagnosis of diabetes. The nurse notes the patient's toenails are thick and ingrown. Which instruction should the nurse provide?
1. Soak feet in Epsom salts daily. 2. Use a clean, sharp razor blade to trim the toenails. 3. Make an appointment with a foot care specialist. 4. Trim nails to follow the curve of the toe.
The nurse is caring for a client who is experiencing inflammation. Which chemical mediators are responsible for inflammation?
1. Bradykinin 2. Prostaglandins 3. Anaphylaxis 4. Potassium sulfate 5. Antipyretics