COMBANK Peds COMAT Flashcards
(147 cards)
Glutathione synthetase deficiency presentation
severe metabolic acidosis in the first few days of life, as well as jaundice and mild to moderate hemolytic anemia secondary to glutathione deficiency
metabolic changes in glutathione synthetase deficiency vs PKU
both can be acidotic:
- G has severe metabolic acidosis in first few days of life
- P has lactic acidosis when untreated, usually later in infancy
Glycogen storage diseases: common findings
hepatomegaly and hypoglycemia
Hartnup disorder: presentation
Most children with the disorder remain asymptomatic; however the major clinical manifestation in the rare symptomatic patient is cutaneous photosensitivity.
histidine decarboxylase deficiency sx
has been associated with development of familial type Tourette’s syndrome.
homocystinuria: cause
deficiency of the enzyme cystathionine beta-synthase (usually remethylates homocysteine to methionine)
homocystinuria: presentation
- normal at birth
- clinical manifestations during infancy include failure to thrive and developmental delay
- pts at risk of ocular lens subluxation, skeletal abnormalities and thromboembolic episodes.
hyperprolinemia: cause
rare autosomal recessive disease caused by a deficiency of proline oxidase
hyperprolinemia: presentation
variable but often includes seizures and psychomotor retardation.
Schizophrenia is also a common clinical finding in these patients.
phenylketonuria: cause
Deficiency of phenylalanine hydroxylase or its co-factor tetrahydrobiopterin can cause accumulation of phenylalanine in body fluids and the brain
phenylketonuria: presentation
- typically normal at birth
- profound mental retardation develops gradually if left untreated.
- unpleasant urine odor (mousey or musty)
- can develop lactic acidosis if untreated
phenylketonuria: presentation
- typically normal at birth
- profound mental retardation develops gradually if left untreated.
- unpleasant urine odor (mousey or musty)
- musky odor
- fair skin
- can develop lactic acidosis if untreated
phenylketonuria: tx
- mainstay = dietary phenylalanine restriction.
- need tyrosine supplementation (prevent mental retardation)
pertussis tx
azithromycin five days (500 mg day one, followed by 250 mg days two through five) or clarithromycin (500 mg twice daily for seven days).
pertussis immunity
- vaccination available but not given in all countries
- exposure does not give long-term immunity
Alport syndrome
- hereditary glomerulonephritis
- associated with deafness and vision problems.
Bartter syndrome
hypokalemia and metabolic alkalosis due to a primary defect in sodium chloride reabsorption in the medullary thick ascending limb of the loop of Henle
(notably have low to normal blood pressure even with metabolic changes)
Gitelman syndrome
hypokalemia, metabolic alkalosis, hypomagnesemia,
hypocalciuria, and normal blood pressure
Liddle syndrome
HTN in young pts with hypokalemic metabolic alkalosis
- hypertension, hypokalemia, hypernatremia, and metabolic alkalosis with low aldosterone
gitelman syndrome vs bartter syndrome vs Liddle syndrome
- all have hypoK and met. alk.
- – G also has hypoMg and hypoCa
- – L also has hyperNa
- Age
- – B&L dx early childhood
- – G diagnosed in late childhood or adulthood
- BP
- – B&G low to normal BP
- – L HTN
fair skin, eczema, and intellectual disability
phenylketonuria
spermatocele
- retention cyst of the epididymis which contains spermatozoa
- presents as a cystic, mobile, smooth nodule superior and posterior to the testis
dx of Sporothrix schenckii
culture on Sabouraud’s dextrose agar
dx of Bartonella henselae
Warthin-Starry stain