NR569 / NR 569 Final Exam (Latest 2025/ 2026):
Differential Diagnosis in Acute Care
Practicum|Questions and Verified Answers| 100%
Correct - Chamberlain
Uveitis - ANSWER -inflammation of the middle layer of the eye. The most
common type of uveitis is iritis. Symptoms include redness, pain, light sensitivity,
and blurred vision
Chalazion - ANSWER -an inflamed nodule (lump) that develops on the eyelid.
caused by the bacterial infection of glands in the eyelid. The infection may result
from poor hygiene or an existing skin condition affecting the face, such as rosacea.
Usually painless. usually drains through the inner surface of the eyelid or is
absorbed spontaneously over 2 to 8 weeks.
Stye - ANSWER -commonly refers to an infected eyelash follicle on the external
part of the eyelid. After initial infection, pus builds up in the eyelash follicle. The
stye will continue to grow and swell for a few days before it eventually bursts and
drains. Most styes heal on their own, but in rare occurrences, the pus may harden
and progress into a chalazion. Painful
Periorbital cellulitis - ANSWER -often occurs from a scratch or insect bite around
the eye that leads to infection of the skin. Symptoms can include swelling, redness,
pain, and tenderness to touch occurring around one eye only. The affected person
is able to move the eye in all directions without pain, but there can be difficulty
opening the eyelid, often due to swelling. Vision is normal.
Orbital Cellulitis - ANSWER -can occur as a complication of a sinus infection;
from trauma to the eye itself; from infection of the tear duct, teeth, ear, or face; or
from spread of periorbital cellulitis. It may become an abscess (a pocket of pus)
behind or around the eye or in the bone. Symptoms of orbital cellulitis include
swelling, redness, pain, and tenderness to touch around one eye, although these
, may be less obvious than in periorbital cellulitis. There is significant pain with
movement of the eyeball. Double vision or blurry vision often occurs, and the
eyeball might be bulging forward, a sign called proptosis.
which eye disorders require immediate referral? - ANSWER -Retinal artery
occlusion
Acute angle-closure glaucoma
Central retinal venous occlusion
Central retinal artery occlusion - ANSWER -Ocular version of a cerebral stroke.
Etiologies: giant cell arteritis, vascular disorder, ipsilateral carotid artery
atherosclerosis, cardiogenic embolism, cancer, sickle cell, and carotid artery
dissection. Acute, PAINLESS monocular COMPLETE vision loss. "Cherry-red
spot" is seen on fundal exam.
Hyphema - ANSWER -Blood that collects between the cornea and iris. Blurred,
clouded, or blocked vision, light sensitivity, pain. Usually occurs with eye
injury/tear to iris or pupil. May also occur with clotting disorder, post-cataract
surgery, or contact lenses.
Retinal venous occlusion - ANSWER -Blocked retinal vein causes blood and fluid
to spill into retina. Gradual or sudden pain, pressure, and vision loss in affected
eye. Floaters and shadows may occur. Increased risk: HTN, diabetes, glaucoma,
hypercoagulable state, and arteriosclerosis. "blood and thunder" fundal appearance
Retinal Detachment - ANSWER -painless eye disorder characterized by the
sudden onset of symptoms such as:
blurry vision
floaters
flashes of light
and reduced peripheral field of vision. begins with a small perforation or tear in the
retia. Vitreous fluid is then able to leak through the tear pushing the retina away
from the underlying structures.
Differential Diagnosis in Acute Care
Practicum|Questions and Verified Answers| 100%
Correct - Chamberlain
Uveitis - ANSWER -inflammation of the middle layer of the eye. The most
common type of uveitis is iritis. Symptoms include redness, pain, light sensitivity,
and blurred vision
Chalazion - ANSWER -an inflamed nodule (lump) that develops on the eyelid.
caused by the bacterial infection of glands in the eyelid. The infection may result
from poor hygiene or an existing skin condition affecting the face, such as rosacea.
Usually painless. usually drains through the inner surface of the eyelid or is
absorbed spontaneously over 2 to 8 weeks.
Stye - ANSWER -commonly refers to an infected eyelash follicle on the external
part of the eyelid. After initial infection, pus builds up in the eyelash follicle. The
stye will continue to grow and swell for a few days before it eventually bursts and
drains. Most styes heal on their own, but in rare occurrences, the pus may harden
and progress into a chalazion. Painful
Periorbital cellulitis - ANSWER -often occurs from a scratch or insect bite around
the eye that leads to infection of the skin. Symptoms can include swelling, redness,
pain, and tenderness to touch occurring around one eye only. The affected person
is able to move the eye in all directions without pain, but there can be difficulty
opening the eyelid, often due to swelling. Vision is normal.
Orbital Cellulitis - ANSWER -can occur as a complication of a sinus infection;
from trauma to the eye itself; from infection of the tear duct, teeth, ear, or face; or
from spread of periorbital cellulitis. It may become an abscess (a pocket of pus)
behind or around the eye or in the bone. Symptoms of orbital cellulitis include
swelling, redness, pain, and tenderness to touch around one eye, although these
, may be less obvious than in periorbital cellulitis. There is significant pain with
movement of the eyeball. Double vision or blurry vision often occurs, and the
eyeball might be bulging forward, a sign called proptosis.
which eye disorders require immediate referral? - ANSWER -Retinal artery
occlusion
Acute angle-closure glaucoma
Central retinal venous occlusion
Central retinal artery occlusion - ANSWER -Ocular version of a cerebral stroke.
Etiologies: giant cell arteritis, vascular disorder, ipsilateral carotid artery
atherosclerosis, cardiogenic embolism, cancer, sickle cell, and carotid artery
dissection. Acute, PAINLESS monocular COMPLETE vision loss. "Cherry-red
spot" is seen on fundal exam.
Hyphema - ANSWER -Blood that collects between the cornea and iris. Blurred,
clouded, or blocked vision, light sensitivity, pain. Usually occurs with eye
injury/tear to iris or pupil. May also occur with clotting disorder, post-cataract
surgery, or contact lenses.
Retinal venous occlusion - ANSWER -Blocked retinal vein causes blood and fluid
to spill into retina. Gradual or sudden pain, pressure, and vision loss in affected
eye. Floaters and shadows may occur. Increased risk: HTN, diabetes, glaucoma,
hypercoagulable state, and arteriosclerosis. "blood and thunder" fundal appearance
Retinal Detachment - ANSWER -painless eye disorder characterized by the
sudden onset of symptoms such as:
blurry vision
floaters
flashes of light
and reduced peripheral field of vision. begins with a small perforation or tear in the
retia. Vitreous fluid is then able to leak through the tear pushing the retina away
from the underlying structures.
