Nokea
Tests used in establishing a diagnosis of coeliac disease are:
- A. IgA anti-endomysial antibodies
- B. IgM anti-reticulin antibodies
- C. IgA anti-gliadin antibodies
- D. Duodenal biopsy
Correct Answer: D
Rationale: A duodenal biopsy is the gold standard for diagnosing coeliac disease, as it provides histological confirmation of the disease.
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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 can present in a newborn infant as a bullous eruption:
- A. Syphilis
- B. Mast cell disease
- C. Epidermolysis bullosa
- D. Phenylketonuria
Correct Answer: C
Rationale: Epidermolysis bullosa is a genetic condition causing blistering of the skin. Syphilis and mast cell disease can also cause bullous eruptions, but phenylketonuria does not.
Hypothalamic nuclei are responsible for:
- A. Control of hunger
- B. Temperature control
- C. Maintaining osmolarity of extracellular fluid
- D. Secretion of thyrotrophin
Correct Answer: A
Rationale: The hypothalamus plays a key role in regulating hunger through various nuclei and hormonal signals.
A chest radiograph film is ordered for a child with suspected cardiac problems. The child’s parent asks the nurse, “What will the radiograph show about the heart?†What knowledge about the x-ray should the nurse include in the response to the parents?
- A. Bones of chest but not the heart
- B. Measurement of electrical potential generated from heart muscle
- C. Permanent record of heart size and configuration
- D. Computerized image of heart vessels and tissues
Correct Answer: C
Rationale: A chest radiograph will provide information on the heart size and pulmonary blood-flow patterns. It will provide a baseline for future comparisons. The heart will be visible, as well as the sternum and ribs. Electrocardiography (ECG) measures the electrical potential generated from heart muscle. Echocardiography will produce a computerized image of the heart vessels and tissues by using sound waves.
In Wilson's disease:
- A. There is an association with high caeruloplasmin levels
- B. Hepatic copper deposition is pathognomonic
- C. There is increased urinary excretion of copper
- D. There are copper deposits on the cornea
Correct Answer: D
Rationale: Copper deposits on the cornea (Kayser-Fleischer rings) are a hallmark of Wilson's disease, a genetic disorder leading to copper accumulation in tissues.