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COA JCAHPO Test/405 Questions with 100% Correct Answers
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COA JCAHPO Test/405 Questions with 100% Correct Answers
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COA JCAHPO Test/405 Questions with100% Correct Answers
Disorders associated with headaches? - -Hypertension or Brain Tumor -Headaches caused by refractive error will not appear during? - -1. Not appear at night
2. Will not appear during sleep
3. Will not appear when you wake up -Where is the aqueous humor located? - -Between the lens and the cornea. -How many rods are there? - -125 million -Where are the rods located? - -In the retina -How many cones are there? - -6 million -Where are the cones located? - -In the retina. -Rods are best in what lighting condition? - -dim light -Without rods what condition will occur? - -night-blindness -Rods are good in what color light? - -Red -What type of drops are used to dilate the eyes? - -Mydriatic drops -What type of drops are used to dilate the eyes and paralyze the fine focusing muscle for near vision? - -Cycloplegic drops -Measuring PD starts from where and ends where? - -Nasal side of right pupil to the temporal side of the pupil on the patients left eye. -What is Rhodopsin? - -Rod pigment. (allows for visual purple) -Rhodopsin forms in ______ and is destroyed by _____? - -forms in dark, and is destroyed by light -Rhodopsin is composed of what Vitamin? - -Vitamin A (deficiency causes night blindness) -What is Adie's Syndrome? - -Tonic Pupil. (pupil responds to light stimulation
very slowly) -How do you measure a patient's PD when they can only see from one eye? -
-measure from center of the pupil of the good eye to the center of the bridge
of the nose -How do you measure a patient's PD when they have unequal pupils? - -
measure from nasal side of the limbus of patients right eye to the temporal side of the limbus of the left eye. -How do you measure a patient's PD when they have a squint? - -Measure from the inner canthus of one eye to the outer canthus of the opposite eye. -What are the most important disorders to ask patients about? - -Diabetes
High Blood Pressure (HTN)
Heart Health/ Cardiovascular Issues
Arthritis -What are the main symptoms of diplopia? - -Loss of alignment of eyes
(covering one eye will always eliminate the second image) -What is the cause of light flashes? - -Retinal detachment -What is the cause of Ptosis? - -3rd Nerve palsy or Diabetes -What is the cause of Diplopia? - -Thyroid Disorder
Diabetes
3rd Nerve Palsy
Myathenia Gravis -What is the cause of sudden loss of vision? - -Macular degeneration
Retinal Detachment
Retinal Vein or Artery Occlusion
Retrobulbar Neuritis -What is the cause of Foreign Body Sensation (FBS)? - -Corneal Abrasion
Herpes Simplex -What is the cause of blurred distance vision in adults? - -Diabetes
Cataracts
Macular Edema -What is the cause of Halos around lights? - -Angle Closure Glaucoma
Cataracts -What is the cause of spots before the eye? - -Retinal Tear Vitreous Detachment -What are the most important items to ask patients during work up? - -1. Present and Past Health History
2. Medication (current and exact name/ purpose)
3. Allergies (drug, inhalants, contactants, food, injections, ingestants) -What symptoms are associated with Acute conjunctivitis? - -Discharge
Pain Blurred Vision -What organism is the cause of Acute Conjunctivitis? - -Staph Aureus -What are some important familial history of common ocular defects? - -
Myopia
Strabismus
Glaucoma -What are the 6 steps to taking history? - -1. Chief Complaint
2. Secondary Problems of the eye
3. Systemic or general illness (current)
4. Past ocular disorders
5. Wear contacts or glasses?
6. Therapies, response to therapies -What are the three main layers of tears? - -Oily Layer (outer)
Aqueous Layer (middle)
Mucin Layer ( inner) -What is the flow path of the aqueous humor? (PPATSA) - -(PPATSA) Posterior Chamber---Pupil---Anterior Chamber---Trabecular Meshwork---
Schlemm's Canal---Aqueous Vein -Lens of the eye? - -A biconvex structure that light passes through. -Vitreous Body? - -Fluid filled space located behind the lens, occupies 2/3rds
of the volume of the eye. -Name the drops used that do not have cycloplegic effects. (CHEEP) - -cocaine (anesthetic)
hydroxaphetamine
eucatropine hydrochloride
epinepherine (adrenalin)
phenylephrine (not used anymore, bad for heart)
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