Most common cause of metabolic acidosis in children is:

Questions 56

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Pediatric Gi Disorders Practice Questions Questions

Question 1 of 9

Most common cause of metabolic acidosis in children is:

Correct Answer: D

Rationale: Diarrhea is the most common cause of metabolic acidosis in kids via bicarbonate loss (AAP). A-D are less frequent.

Question 2 of 9

Inhaled glucocorticoid therapy can cause dysphonia in patients with asthma. The cause of dysphonia is:

Correct Answer: A

Rationale: Vocal cord myopathy from inhaled glucocorticoids causes dysphonia via local steroid effects on laryngeal muscles (ATS). Fungal infection causes thrush, and C-E are unrelated.

Question 3 of 9

Doctor orders: Mycostatin oral suspension 500,000 units swish/swallow for child with oral candidiasis. Available is Mycostatin 100,000 units/ml. How many teaspoons will you give?

Correct Answer: D

Rationale: Calculate the volume in ml: 500,000 units ÷ 100,000 units/ml = 5 ml. Convert ml to teaspoons (1 teaspoon = 5 ml): 5 ml ÷ 5 ml/teaspoon = 1 teaspoon.

Question 4 of 9

A 5-year-old boy presents with fever and a petechial rash. Labs show thrombocytopenia and elevated D-dimer. Most likely diagnosis is:

Correct Answer: C

Rationale: DIC fits petechiae and elevated D-dimer, per ISTH. A, B, D, E differ.

Question 5 of 9

What is the most helpful in preventing premature birth?

Correct Answer: C

Rationale: Adequate prenatal care C reduces preterm birth risk through monitoring and intervention, per document 1.

Question 6 of 9

The priority nursing action for a child with a head injury is

Correct Answer: D

Rationale: Stabilizing neck *E* prevents spinal injury, per document p30, 2.

Question 7 of 9

Most common cause of precocious puberty in boys is:

Correct Answer: A

Rationale: Adrenal tumor is the most common cause of precocious puberty in boys, per AAP (doc p148, Q563).

Question 8 of 9

A 3-year-old has been having mild diarrhea for seven days. The nurse advises the parent to modify the child's diet by using which of the following?

Correct Answer: C

Rationale: Pedialyte (C) replaces fluids and electrolytes lost in diarrhea. BRAT diet (A) is outdated, juice/carbonation (B) worsen diarrhea, and soup (D) lacks balanced electrolytes. Document: 'An oral rehydrating solution is recommended to replace fluids and electrolytes.'

Question 9 of 9

A 1-month-old infant presents with projectile vomiting. Physical exam reveals an olive-shaped mass in the epigastrium. Most likely diagnosis is:

Correct Answer: B

Rationale: Pyloric stenosis presents with projectile vomiting and a palpable mass, per AAP. A, C-E have different features.

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