ar-oldmancomestothe physician becauseof a 3-dayhistory of tingling inhis fingers and muscle cramps. Tapping overthe facial nerve produces ipsilateral contraction of the faciai muscles. His serum calcium concentration is 7.2 mg/dl. Serum concentrations of vitamin D and 25-hydroxycholecalciferol are within the reference range; serum 1,25-dihydroxycholecalciferol concentration is 5 pg/ml (N=18-65). Disease inwhich of the following is the most likely cause ofthis patient's findings? A) Bon
ar-oldmancomestothe physician becauseof a 3-dayhistory of tingling inhis fingers and muscle cramps. Tapping overthe facial nerve produces ipsilateral contraction of the faciai muscles. His serum calcium concentration is 7.2 mg/dl. Serum concentrations of vitamin D and 25-hydroxycholecalciferol are within the reference range; serum 1,25-dihydroxycholecalciferol concentration is 5 pg/ml (N=18-65). Disease inwhich of the following is the most likely cause ofthis patient's findings? A) Bon
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
84.A35-year-oldmancomestothe physician becauseof a 3-dayhistory of tingling inhis fingers and muscle cramps. Tapping overthe facial nerve produces ipsilateral contraction of the faciai muscles. His serum calcium concentration is 7.2 mg/dl. Serum concentrations of vitamin D and 25-hydroxycholecalciferol are within the reference range; serum 1,25-dihydroxycholecalciferol concentration is 5 pg/ml (N=18-65). Disease inwhich of the following is the most likely cause ofthis patient's findings?
A) Bone
B) Gut
C) Kidney
D) Liver
E) Lungs
F) Skin
Expert Solution
Step 1
Ipsilateral contraction of the facial muscles suggest spontaneous muscle twitching. Calcium ions play a very important role in nerve impulse conduction and muscle contraction.
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