Nokea
Concerning Ebstein-Barr virus (infectious mononucleosis):
- A. Presence of petechiae between the hard and soft palate supports the diagnosis
- B. Typically a rash following administration of penicillin V occurs
- C. Guillain-Barre syndrome is a recognised sequel
- D. Hepatitis is common
Correct Answer: A
Rationale: Petechiae between the hard and soft palate are a classic sign of infectious mononucleosis. A rash following penicillin V is also common, and Guillain-Barre syndrome is a rare complication.
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What FOUR other features may you find on her physical examination if you suspect infective endocarditis?
- A. Intracranial hemorrhage
- B. Conjunctival hemorrhages
- C. Glomerulonephritis
- D. Roth spots
Correct Answer: D
Rationale: These physical signs are common in infective endocarditis and help with clinical diagnosis.
The following are true of vitamin K:
- A. It is a water-soluble vitamin
- B. It is found mainly in red meat
- C. After infancy most is synthesised by the gut flora
- D. Low levels after birth may lead to intracerebral haemorrhage
Correct Answer: C
Rationale: Vitamin K is synthesized by gut flora after infancy. It is a fat-soluble vitamin, and low levels after birth can lead to hemorrhagic disease of the newborn.
A 3-year-old child diagnosed with congestive heart failure is receiving maintenance doses of digoxin and furosemide (Lasix). She is rubbing her eyes when she is looking at the lights in the room and her heart rate is 65 beats per minute. The nurse expects which laboratory finding?
- A. Hypokalemia
- B. Hypomagnesemia
- C. Hypocalcemia
- D. Hypophosphatemia
Correct Answer: A
Rationale: Hypokalemia is a common side effect of furosemide, a diuretic, and can exacerbate digoxin toxicity, which may present with symptoms such as visual disturbances and bradycardia.
What does the nurse need to assess first when caring for a child with a suspected myocardial infarction?
- A. Blood pressure and heart rate
- B. Chest pain and anxiety levels
- C. Oxygen saturation and respiratory rate
- D. Electrocardiogram and heart sounds
Correct Answer: D
Rationale: The first priority in a suspected myocardial infarction is to assess the heart's electrical activity using an electrocardiogram and listen to heart sounds for any abnormality such as murmurs.
The following are recognised features of achondroplasia:
- A. Shortened spine
- B. Increased liability to pathological fractures
- C. Can be diagnosed radiologically at birth
- D. Infertility
Correct Answer: C
Rationale: Achondroplasia can be diagnosed radiologically at birth. The spine is not shortened, fractures are not increased, and infertility is not a feature.