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.
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Which of the following statements is incorrect regarding delayed tooth eruption?
- A. Most common cause is idiopathic
- B. Defined as no teeth eruption by 15 months of age
- C. Mechanical blockade can be a cause
- D. Hypothyroidism and hypoparathyroidism should be ruled out
Correct Answer: B
Rationale: Delayed tooth eruption is defined as no teeth eruption by 13 months of age, not 15 months.
A child born with Down syndrome should be evaluated for which associated cardiac manifestation?
- A. Congenital heart defect (CHD)
- B. Systemic hypertension
- C. Hyperlipidemia
- D. Cardiomyopathy
Correct Answer: A
Rationale: CHD is found frequently in children with Down syndrome.
A hospitalized client with chemotherapy-induced stomatitis complains of mouth pain. What is the best initial nursing action?
- A. Encourage frequent mouth care
- B. Cleanse the tongue and mouth with glycerin swabs
- C. Obtain a soft diet for the client
- D. Administer a topical analgesic per PRN protocol.
Correct Answer: D
Rationale: Administering a topical analgesic provides immediate pain relief, allowing the client to tolerate mouth care and other interventions.
X-linked conditions include:
- A. Duchenne muscular dystrophy
- B. Hypophosphataemic rickets
- C. Huntington's chorea
- D. Phenylketonuria
Correct Answer: A
Rationale: Duchenne muscular dystrophy is an X-linked recessive disorder caused by mutations in the dystrophin gene.
Which of the following statements is true regarding alcohol septal ablation?
- A. Indicated when dynamic LV outflow gradient is more than 50 mm Hg at rest
- B. Targeted septal thickness less than 16 mm is a contraindication
- C. Usually preferred over surgical myomectomy
- D. Reduces risk of sudden death
Correct Answer: A
Rationale: Alcohol septal ablation is indicated when the dynamic LV outflow gradient is more than 50 mm Hg at rest.