You are presenting about upper respiratory infections at an educational event for a local community group. What should you be sure to include regarding cold tablets containing antihistamines?
A) They dilute the nasal secretions.
B) They lead to frequent sinus drainage.
C) They decrease discomfort temporarily.
D) They prolong bleeding.
C
Feedback:
Some cold tablets contain antihistamines that thicken the nasal secretions. Although this action may temporarily decrease the discomfort of profuse nasal secretions, thickened secretions can block the drainage openings of the sinus cavity, leading to the failure of the sinuses to drain adequately. Aspirin prolongs bleeding.
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The nurse understands that which of the following hormones is directly responsible for maintaining the free or unbound portion of serum calcium within normal limits?
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