Nokea
Restrictive cardiomyopathy (RCM) is characterized by all the following EXCEPT
- A. normal ventricular chamber dimensions
- B. normal myocardial wall thickness
- C. preserved systolic function
- D. normal atrial chamber dimensions
Correct Answer: D
Rationale: Restrictive cardiomyopathy is characterized by impaired ventricular filling and high diastolic pressures despite normal systolic function.
You may also like to solve these questions
All the following statements about spontaneous coronary artery dissection are true, except
- A. More common in young females
- B. Proximal coronary involvement associated with immuno-inflammatory disease
- C. Intra-coronary imaging shows 'accordion sign'
- D. Physical stress precipitates it by causing intimal tear
Correct Answer: C
Rationale: The 'accordion sign' is not typically associated with spontaneous coronary artery dissection.
Which should the nurse consider when preparing a school-age child and the family for heart surgery?
- A. Unfamiliar equipment should not be shown.
- B. Let the child hear the sounds of an ECG monitor.
- C. Avoid mentioning postoperative discomfort and interventions.
- D. Explain that an endotracheal tube will not be needed if the surgery goes well.
Correct Answer: B
Rationale: The child and family should be exposed to the sights and sounds of the intensive care unit (ICU). All positive, nonfrightening aspects of the environment are emphasized. The child should be shown unfamiliar equipment and its use demonstrated on a doll. Carefully prepare the child for the postoperative experience, including intravenous (IV) lines, incision, and endotracheal tube.
Medical treatment of myasthenia gravis includes:
- A. Thymectomy
- B. Physostigmine
- C. Edrophonium
- D. Anticholinergic agents
Correct Answer: C
Rationale: Edrophonium: Edrophonium is used in the diagnosis and short-term treatment of myasthenia gravis as it improves neuromuscular transmission by inhibiting acetylcholinesterase.
An 18-month-old with a myelomeningocele is undergoing a cardiac catheterization. The mother expresses concern about the use of dye in the procedure. The child does not have any allergies. In addition to an iodine allergy, which other allergy should the nurse bring to the attention of the catheterization staff?
- A. Soy
- B. Latex
- C. Penicillin
- D. Dairy
Correct Answer: B
Rationale: Children with spina bifida (myelomeningocele) are often allergic to latex; catheter balloons and other materials may contain latex.
All of the following immune-mediated diseases are associated with antineutrophil cytoplasmic antibody, except
- A. Wegener granulomatosis
- B. Churg-Strauss syndrome
- C. Microscopic polyangiitis
- D. Henoch-Schönlein purpura
Correct Answer: D
Rationale: Henoch-Schönlein purpura is not associated with antineutrophil cytoplasmic antibodies (ANCA); it is an IgA-mediated vasculitis.