Nokea
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.
You may also like to solve these questions
Drugs to be avoided in renal failure include:
- A. Allopurinol
- B. Digoxin
- C. Ceftazidime
- D. Acyclovir
Correct Answer: B
Rationale: Digoxin is avoided in renal failure due to its narrow therapeutic index and renal excretion, which can lead to toxicity.
A parent brings a toddler, age 19 months, to the clinic for a regular check-up. When palpating the toddler’s fontanels, what should the nurse expects to find?
- A. Closed anterior fontanel and open posterior fontanel
- B. Open anterior and fontanel and closed posterior fontanel
- C. Closed anterior and posterior fontanels
- D. Open anterior and posterior fontanels
Correct Answer: C
Rationale: By 19 months, both the anterior and posterior fontanels should be closed as the skull bones have fused.
The following conditions are associated with hyperammonaemia:
- A. Reye syndrome
- B. Citrullinaemia
- C. Methylmalonic acidaemia
- D. Homocystinuria
Correct Answer: A
Rationale: Reye syndrome is associated with hyperammonaemia due to liver dysfunction and impaired urea cycle function, leading to ammonia accumulation.
Clinical manifestations of hypoplastic left-heart syndrome in the 1st 48 hr of life include
- A. always obvious color
- B. deep-blue skin
- C. bounding peripheral pulses
- D. occasional association with Turner syndrome
Correct Answer: C
Rationale: Bounding peripheral pulses are not typical in hypoplastic left-heart syndrome.
How long should a 4-year-old child recovering from rheumatic fever need to receive monthly injections of penicillin G?
- A. 1 year
- B. 2 years
- C. 5 years
- D. 10 years
Correct Answer: C
Rationale: Children who recover from rheumatic fever should have a chemoprophylaxis protocol of penicillin G injections (about 200,000 units per dose) for a minimum of 5 years or up to the age of 18 to prevent further bouts of rheumatic fever.