phuluong2k
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A 3-week-old African American boy is brought to the Emergency Department because of a generalized seizure 2 hours ago. The infant is highly irritable with incessant high pitched crying. The infant's weight is 2.5 kg (250 gm below birth weight), blood pressure is 70 /40 mm Hg, pulse is 145/min and respirations are 50/min. Laboratory results show: Blood glucose 120 mg/dL
Urea nitrogen 50 mg/dL
Serum sodium 170 mEq/L
Serum calcium 8.5 mg/dL
Serum magnesium 1.5 mg/dL
Which of the following is the most likely cause of this infants seizure?
A. Hypocalcemia
B. Hypoglycemia
C. Hypomagnesemia
D. Intracranial hemorrhage
E. Meningitis
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| chemamr
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D?
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| kmp
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A) Hypocalcemia
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| Geroo
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C)hypomagnesemia
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| chemamr
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which is the answer and why¿?
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| mani
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C)hypomagnesemia Normal level is 1.8-3 mg/dl
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| phuluong2k
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It is D, hypernatremia can cause intracranial bleeding
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| chemamr
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| mani
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well irritability and high pitched cry can be taken as clues to I/C bleed but they too non-specific to be quoted. More over if there is I/C blled there would be raised ICP and hence bradycardia nd raised BP rather than 70/40 Bp and 145/min pulse rate. Is there some explanation Phuluong?
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| phuluong2k
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Hi
Cushing reflex of bradicardia & HTA is in the last stage of increased ICP, when the brain lost it's regulation
The given explanation is not in detail, hypernatremia cause water hift off cell, then shrinkage, then bleeding
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| Jinx
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so answer is intracranial haemorrhage due to hypernatremia??
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