Nursing UTA QUESTIONS ANDA
1.1. A A fluorescienfluorescien stainstain isis usedused toto
diagnose:diagnose:
A. A. CornealCorneal abrasionabrasion
B.B. BlepharitisBlepharitis
C.C. CataractsCataracts
D.D. MMacular ͘acular degenerationdegeneration
Answer: Answer: A. A. CornealCorneal abrasionabrasion
Rationale: Rationale: FluoresceinFluorescein stainstain isis aa
diagnosticdiagnostic dyedye usedused toto highlighthighlight
irregularities irregularities on the corneal surface. When applied to the eye, it
pools in areas where the on the corneal surface. When applied to the
eye, it pools in areas where the
protective epithelial layer is daprotective epithelial layer is damaged,
m͘aged, such as a corneal abrasion. Under a such as a corneal abrasion.
Under a cobalt blue light, these dacobalt blue light, these damaged
m͘aged areas fluoresce green, areas fluoresce green, mmaking ͘aking
thethem m͘ easily easily visible visible to thto the e clinician. It is not
used to diagnose inflaclinician. It is not used to diagnose
inflammations m͘m͘ations of the eyelid of the eyelid ((blepharitis),
,opacities of the lens (cataracts), or retinal disorders blepharitis), opacities
of the lens (cataracts), or retinal disorders ((mmacular ͘acular
degeneration).degeneration).
2.2. TheThe presencepresence ofof TPOTPO ((thyroidthyroid
peroxidaseperoxidase antibodies)antibodies) indicatedindicated
what what endocrine condition?endocrine condition? A. A.
HypothyroidisHypothyroidism m͘
B.B. HyperthyroidisHyperthyroidism m͘
C.C. SubclinicalSubclinical hypothyroidishypothyroidism m͘
D.D. HashiHashimoto m͘oto ThyroiditisThyroiditis
E.E. IdiopathicIdiopathic hypothyroidishypothyroidism m͘
Ansvver: Answer: D.D. HashiHashimoto m͘oto ThyroiditisThyroiditis
Rationale: Rationale: ThyroidThyroid peroxidaseperoxidase ((TPOTPO) )
antibodiesantibodies areare autoantibodiesautoantibodies thatthat
attackattack
anan enzyenzyme m͘e crucialcrucial forfor thethe productionproduction
ofof thyroidthyroid horhormone. m͘one. TheirTheir presencepresence
, inin the the blood is a priblood is a primary m͘ary indicator of an
autoiindicator of an autoimimune m͘m͘une attack on the thyroid gland.attack
on the thyroid gland.
While While theythey cancan bebe elevatedelevated inin otherother
autoiautoiminune m͘m͘une thyroidthyroid conditions,conditions,
theythey areare the the hallhallmark m͘ark serologic finding in
Hashiserologic finding in Hashimoto's m͘oto's thyroiditis, which is the
thyroiditis, which is the mmost ͘ost cocommon m͘m͘on cause of
hypothyroidiscause of hypothyroidism m͘ in in the United States. The
presence of TPO the United States. The presence of TPO antibodies
confirantibodies confirms m͘s the autoithe autoimmune m͘m͘une etiology,
distinguishing Hashietiology, distinguishing Hashimoto's m͘oto's
frofrom m͘ other forother forms m͘s of hypothyroidisof hypothyroidism.
m͘.
3.3. EEmily m͘ily hashas chronicchronic drydry eye.eye. TheThe
doctordoctor suggestedsuggested usingusing Cyclosporine
Cyclosporine ophthalophthalmic m͘ic eemulsion m͘ulsion for her eye
but it did not work. Which of the for her eye but it did not work.