Nokea
In truncus arteriosus, all the following are true EXCEPT
- A. VSD is always present
- B. clinical manifestations are characterized by severe cyanosis and the degree of cyanosis are high
- C. both ventricles fail clinically
- D. cyanosis is usually mild
Correct Answer: B
Rationale: Cyanosis is usually mild initially in truncus arteriosus.
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Recognised features of ABO incompatibility include:
- A. Normal haemoglobin on day 1
- B. Worsening with subsequent pregnancies
- C. Conjugated hyperbilirubinaemia
- D. Negative Coombs test
Correct Answer: A
Rationale: In ABO incompatibility, haemoglobin levels are typically normal on day 1. The condition does not worsen with subsequent pregnancies and is associated with unconjugated hyperbilirubinaemia.
Decreased DLCO is seen with:
- A. Increased CO in circulation
- B. Anaemia
- C. Pulmonary fibrosis
- D. Exercise
Correct Answer: C
Rationale: Pulmonary fibrosis: Decreased diffusing capacity for carbon monoxide (DLCO) is a hallmark of pulmonary fibrosis, where lung tissue becomes scarred, reducing its ability to transfer gases.
Which action by the school nurse is important in the prevention of rheumatic fever?
- A. Encourage routine cholesterol screenings.
- B. Conduct routine blood pressure screenings.
- C. Refer children with sore throats for throat cultures.
- D. Recommend salicylates instead of acetaminophen for minor discomforts.
Correct Answer: C
Rationale: Nurses have a role in prevention—primarily in screening school-age children for sore throats caused by group A β-hemolytic streptococci. They can achieve this by actively participating in throat culture screening or by referring children with possible streptococcal sore throats for testing. Cholesterol and blood pressure screenings do not facilitate the recognition and treatment of group A β-hemolytic streptococci. Salicylates should be avoided routinely because of the risk of Reye syndrome after viral illnesses.
The nurse is teaching the importance of an exercise regime that includes walking daily for a group of clients with asthma, chronic bronchitis, and emphysema at a pulmonary rehabilitation clinic. Which rationale should the nurse include when motivating the clients?
- A. Daily exercise and walking enhances cardiovascular fitness
- B. Exercise eliminates the need for bronchodilator medications.
- C. Walking daily reverses lung damage caused by chronic conditions.
- D. Physical activity increases mucus production to clear airways.
Correct Answer: A
Rationale: Regular exercise improves cardiovascular fitness, which can enhance overall respiratory function and quality of life in clients with chronic pulmonary conditions.
A pediatric patient is scheduled for a noninvasive procedure to determine if his heart is structurally normal and to localize a murmur. What diagnostic test does the nurse anticipate?
- A. Barium swallow
- B. Chest x-ray
- C. Electrocardiogram
- D. Echocardiogram
Correct Answer: D
Rationale: Echocardiography is a noninvasive procedure that localizes murmurs and determines if the heart is structurally normal.