Nokea
The following are true about water excretion:
- A. It is influenced by the proximal tubule
- B. It is influenced by vasopressin
- C. It depends on erythropoietin
- D. It is influenced by the ascending limb of the loop of Henle
Correct Answer: B
Rationale: It is influenced by vasopressin: Vasopressin (ADH) regulates water reabsorption in the kidneys, primarily by acting on the collecting ducts, enhancing water retention in response to dehydration.
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A healthcare worker with no known exposure to tuberculosis has received a Mantoux tuberculosis skin test. The nurse's assessment of the test after 62 hours indicates 5 mm of erythema without induration. What is the best initial nursing action?
- A. Document negative results in the client's medical record
- B. Repeat the test immediately on the opposite forearm
- C. Notify the healthcare provider for further evaluation
- D. Schedule the worker for a chest X-ray
Correct Answer: A
Rationale: Erythema without induration is not considered a positive result. Documentation of negative findings is appropriate.
Rett syndrome is characterised by:
- A. Social withdrawal
- B. Self-mutilation
- C. Macrocephaly
- D. Wringing hand movements
Correct Answer: D
Rationale: Wringing hand movements are a hallmark feature of Rett syndrome, a neurodevelopmental disorder primarily affecting females.
The MOST common cause of pulmonary hypertension in pediatric patients is
- A. idiopathic pulmonary hypertension
- B. pulmonary venoocclusive disease
- C. left-sided valvular heart disease
- D. chronic obstructive pulmonary disease
Correct Answer: A
Rationale: Idiopathic pulmonary hypertension is a rare but recognized cause of pulmonary hypertension in children.
The following are recognised in coeliac disease:
- A. Oesophageal carcinoma
- B. Malignant lymphoma
- C. Hyposplenism
- D. Amyloidosis
Correct Answer: C
Rationale: Hyposplenism: Coeliac disease is associated with hyposplenism, which can result in impaired immune responses and increased susceptibility to infections.
A health care provider has prescribed oxygen as needed for an infant with heart failure. In which situation should the nurse administer the oxygen?
- A. During sleep
- B. When changing the infant’s diapers
- C. When the mother is holding the infant
- D. When drawing blood for electrolyte level testing
Correct Answer: A
Rationale: Administering oxygen during sleep can help ensure the infant maintains adequate oxygenation, especially since infants with heart failure may have compromised respiratory function.