Nokea
Which of the following is false regarding right ventricle?
- A. It has fine and regular trabeculations
- B. Septal attachment of AV valve is more apical
- C. Moderator band is present
- D. Trabecular septomarginalis is present
Correct Answer: A
Rationale: The right ventricle typically has coarse trabeculations, not fine and regular ones.
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An adult client is admitted with diabetic ketoacidosis (DKA) and a urinary tract infection (UTI). Prescriptions for intravenous antibiotics and an insulin infusion are initiated. Which serum laboratory value warrants the most immediate intervention by the nurse?
- A. Glucose of 350 mg/dl
- B. White blood cell count of 15,000 mm3
- C. Blood PH of 7.30
- D. Potassium of 2.5 mEq/L
Correct Answer: D
Rationale: A potassium level of 2.5 mEq/L is dangerously low and must be corrected immediately to prevent cardiac arrhythmias.
A child develops carditis from rheumatic fever. Which areas of the heart are affected by carditis?
- A. Coronary arteries
- B. Heart muscle and the mitral valve
- C. Aortic and pulmonic valves
- D. Contractility of the ventricles
Correct Answer: B
Rationale: The tissues that cover the heart and heart valves are affected. The heart muscle may be involved and the mitral valve is frequently involved.
Features of congenital rubella syndrome include:
- A. Intrauterine growth retardation
- B. Hepatomegaly
- C. Thrombocytopenia
- D. Polydactyly
Correct Answer: A
Rationale: Intrauterine growth retardation is a classic feature of congenital rubella syndrome due to the teratogenic effects of the virus.
A male client with Herpes zoster (shingles) on his thorax tells the nurse that he is having difficulty sleeping. What is the probable etiology of this problem?
- A. Pain
- B. Nocturia
- C. Dyspnea
- D. Frequent cough
Correct Answer: A
Rationale: Pain from shingles can be severe and interfere with sleep, making it the most likely cause of the client's difficulty sleeping.
Which statement by the mother of a child with rheumatic fever (RF) shows she has an understanding of prevention for her other children?
- A. Whenever one of them gets a sore throat, I will give that child an antibiotic.
- B. There is no treatment. It must run its course.
- C. If their culture is positive for group A streptococcus, I will give them their antibiotic.
- D. If their culture is positive for staphylococcus A, I will give them their antibiotic.
Correct Answer: A
Rationale: Preventive antibiotic therapy is indicated when a culture is positive for group A streptococcus, but unnecessary antibiotic use (if the infection is viral) should be avoided.