Nokea
The following statements about immunoglobulins are false:
- A. IgG is not transferable across the placenta
- B. IgM is usually a pentamer
- C. IgE levels are raised in parasitic infestations
- D. IgD is important in antibody dependent cytotoxicity
Correct Answer: A
Rationale: IgG is not transferable across the placenta: IgG is the only immunoglobulin that crosses the placenta to provide passive immunity to the fetus.
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True statements about the use of the new Child Health Foundation growth charts include:
- A. Immediate referral is advised if the height of a child is on the second centile
- B. The midparental height of a child, whose parents are 176 and 160 cm tall, is 175 cm
- C. They can be used for all children including those with Down's syndrome
- D. The target centile range for a girl is midparental height ± 10 cm
Correct Answer: C
Rationale: The growth charts are designed to be inclusive and can be used for children with Down's syndrome, among others.
The MOST common cause of syncope in children is
- A. Wolff-Parkinson-White syndrome
- B. prolonged QT syndrome
- C. atrioventricular block
- D. neurocardiogenic syncope
Correct Answer: D
Rationale: Neurocardiogenic syncope is the most common cause of syncope in children due to autonomic dysfunction.
Which among the following is a correct description for the condition 'mitral arcade'?
- A. Absent chordal insertions
- B. Absent papillary muscles
- C. Fused papillary muscles
- D. Elongated papillary muscles
Correct Answer: C
Rationale: Mitral arcade is characterized by fused papillary muscles.
A client with a history of asthma and bronchitis arrives at the clinic with shortness of breath, productive cough with thickened tenacious mucous, and the inability to walk up a flight of stairs without experiencing breathlessness. Which action is most important for the nurse to instruct the client about self-care?
- A. Increase the daily intake of oral fluids to liquefy secretions
- B. Avoid crowded enclosed areas to reduce pathogen exposure
- C. Call the clinic if undesirable side effects of mediations occur
- D. Teach anxiety reduction methods for feelings of suffocation
Correct Answer: A
Rationale: Increasing fluid intake helps to thin secretions, making them easier to expectorate and improving airway clearance.
Typical features of Down's syndrome include:
- A. Brachycephaly
- B. Hypotonia
- C. Male infertility
- D. Increased a-fetoprotein in amniotic fluid
Correct Answer: B
Rationale: Hypotonia is a key feature of Down's syndrome, often leading to delayed development and muscle weakness.