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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.
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All of the following are conditions with combined cellular and antibody immunodeficiency, except
- A. Ataxia telangiectasia
- B. Reticular dysgenesis
- C. Common variable immunodeficiency
- D. Severe combined immunodeficiency
Correct Answer: C
Rationale: Common variable immunodeficiency (CVID) is primarily an antibody deficiency, not a combined immunodeficiency.
A nurse cares for a client who has advanced cardiac disease and states, I am having trouble sleeping at night. How should the nurse respond?
- A. I will consult the provider to prescribe a sleep study to determine the problem.
- B. You become hypoxic while sleeping; oxygen therapy via nasal cannula will help.
- C. A continuous positive airway pressure, or CPAP, breathing mask will help you breathe at night.
- D. Use pillows to elevate your head and chest while you are sleeping.
Correct Answer: D
Rationale: Elevating the head and chest can reduce fluid accumulation in the lungs, improving breathing and sleep quality in clients with advanced cardiac disease.
Increased left ventricular end diastolic volume is seen in:
- A. Mitral regurgitation
- B. Congestive cardiomyopathy
- C. Hypertrophic obstructive cardiomyopathy
- D. Aortic stenosis
Correct Answer: A
Rationale: Mitral regurgitation leads to increased left ventricular end-diastolic volume due to backflow of blood into the left atrium.
Features differentiating renal tubular acidosis type II from type I include:
- A. Increased anion gap
- B. Nephrocalcinosis
- C. Urinary pH can be lowered < 5.5 in ammonium chloride loading test in type I
- D. Aminoaciduria
Correct Answer: C
Rationale: In type I renal tubular acidosis, urinary pH can be lowered below 5.5 during an ammonium chloride loading test, unlike in type II.
Which intervention should the nurse plan to decrease cardiac demands in an infant with congestive heart disease (CHD)?
- A. Organize nursing activities to allow for uninterrupted sleep.
- B. Allow the infant to sleep through feedings during the night.
- C. Wait for the infant to cry to show definite signs of hunger.
- D. Discourage parents from rocking the infant.
Correct Answer: A
Rationale: The infant requires rest and conservation of energy for feeding. Every effort is made to organize nursing activities to allow for uninterrupted periods of sleep. Whenever possible, parents are encouraged to stay with their infant to provide the holding, rocking, and cuddling that help children sleep more soundly. To minimize disturbing the infant, changing bed linens and complete bathing are done only when necessary. Feeding is planned to accommodate the infant’s sleep and wake patterns. The child is fed at the first sign of hunger, such as when sucking on fists, rather than waiting until he or she cries for a bottle because the stress of crying exhausts the limited energy supply. Because infants with CHD tire easily and may sleep through feedings, smaller feedings every 3 hours may be helpful.