The main risk factor for developing deep vein thrombosis is:
- A. Prolonged immobility
- B. Age
- C. Obesity
- D. Family history
Correct Answer: A
Rationale: Prolonged immobility, such as during long flights or post-surgery, is a significant risk factor for developing deep vein thrombosis (DVT).
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Patients at risk for bacterial endocarditis include those with all of the following EXCEPT
- A. repaired simple atrial septic defect
- B. aortic stenosis
- C. rheumatic fever heart disease
- D. palliative vascular shunts
Correct Answer: A
Rationale: Repaired simple atrial septal defects are not considered a risk for bacterial endocarditis unless there are residual defects.
The lower limit of pulse rate in neonate at rest is
- A. 50/min
- B. 60/min
- C. 70/min
- D. 80/min
Correct Answer: B
Rationale: The lower limit of normal pulse rate in neonates at rest is typically around 60 beats/min.
The following drugs cause hypokalaemia:
- A. Commencement of digoxin for atrial fibrillation
- B. ACE (angiotensin converting enzyme) inhibitors
- C. Salbutamol for asthma
- D. Vitamin B1 for the treatment of pernicious anaemia
Correct Answer: C
Rationale: Salbutamol can cause hypokalaemia. Digoxin, ACE inhibitors, and vitamin B1 do not typically cause hypokalaemia.
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 following cardiac lesions are at increased risk for bacterial endocarditis EXCEPT
- A. mitral insufficiency
- B. aortic stenosis
- C. atrial septal defect seccundum
- D. coarctation of the aorta
Correct Answer: C
Rationale: ASD seccundum is generally not considered a high-risk lesion for bacterial endocarditis.