A patient has been using latanoprost (Xalatan) ophthalmic drops. The patient tells the nurse, "My eyes used to be greenish-brown, but now they're brown." What will the nurse do?
a. Reassure the patient that this is a harmless side effect.
b. Report this toxic effect to the patient's provider.
c. Tell the patient that this indicates an increased risk of migraine headaches.
d. Tell the patient that this effect will reverse when the medication is withdrawn.
ANS: A
Latanoprost can cause a harmless, heightened brown pigment of the iris that stops when the medication is discontinued but does not regress. It is not a sign of a toxic reaction. It does not indicate an increased risk of developing migraines. It will not reverse.
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