Blunt Trauma Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Blunt Trauma. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Blunt Trauma Indian Medical PG Question 1: A 33-year-old patient suffers from blunt trauma to the eye. Fundoscopy shows a cherry red spot, the probable diagnosis is
- A. Central Retinal Artery Occlusion (Correct Answer)
- B. Retinoblastoma
- C. Optic nerve transection
- D. Posterior Vitreous Detachment
Blunt Trauma Explanation: ***Central Retinal Artery Occlusion***
- A **cherry red spot** on fundoscopy is a classic sign of **central retinal artery occlusion (CRAO)**, occurring due to the opaque retina surrounding the fovea, which maintains its blood supply from the choroid.
- While blunt trauma can cause CRAO, the primary mechanism is often an **arterial embolism** or thrombus, leading to acute, painless vision loss.
*Retinoblastoma*
- Retinoblastoma is a **childhood eye cancer** most commonly presenting with **leukocoria** (white pupillary reflex) and strabismus, not typically a cherry red spot.
- Although it can present with retinal detachment, the characteristic fundoscopic finding is a **white intraocular mass**, not an ischemic retinal appearance.
*Optic nerve transection*
- Optic nerve transection results in immediate, severe vision loss and a **positive relative afferent pupillary defect (RAPD)**, but it generally does not cause a cherry red spot.
- Fundoscopy after optic nerve transection would initially appear normal, with subsequent **optic disc pallor** developing over weeks to months.
*Posterior Vitreous Detachment*
- **Posterior vitreous detachment (PVD)** is a common age-related condition presenting with **floaters** and **flashes of light**.
- Fundoscopy typically reveals a **Weiss ring** (a ring of glial tissue) and vitreous opacities, not a cherry red spot, and vision loss is often not as sudden or severe as CRAO.
Blunt Trauma Indian Medical PG Question 2: A patient presents with acute appendicitis. What is NOT to be done?
- A. Give antibiotics
- B. Do primary survey
- C. Perform appendectomy
- D. Check for visual acuity (Correct Answer)
Blunt Trauma Explanation: ***Check for visual acuity***
- **Visual acuity** assessment is not relevant to the diagnosis or management of **acute appendicitis**.
- This examination is typically performed in cases of suspected eye injury, vision changes, or neurological issues that affect vision.
- In the context of acute appendicitis, checking visual acuity would be inappropriate and waste valuable time.
*Give antibiotics*
- **Antibiotics** are crucial in managing **acute appendicitis** to prevent progression to perforation and reduce postoperative infection risk.
- They are typically administered preoperatively and continued postoperatively, especially in cases of complicated appendicitis.
- Broad-spectrum antibiotics covering **gram-negative organisms and anaerobes** are standard practice.
*Do primary survey*
- A **primary survey** (ABCDE approach) is essential in any emergent patient presentation to assess and manage immediate **life-threatening conditions**.
- While appendicitis itself may not be immediately life-threatening, ensuring patient stability and ruling out other serious conditions is critical.
- This is standard emergency medicine practice and should always be performed.
*Perform appendectomy*
- **Appendectomy** (surgical removal of the appendix) is the definitive treatment for **acute appendicitis**.
- This is the standard of care and should be performed once the diagnosis is confirmed and the patient is stable.
- Either open or laparoscopic approach can be used depending on clinical factors and surgeon expertise.
Blunt Trauma Indian Medical PG Question 3: Following blunt trauma a young male presents with a D shaped pupil. What is the diagnosis?
- A. Iridodialysis (Correct Answer)
- B. Orbital fracture
- C. Traumatic hyphema
- D. Iridoschisis
Blunt Trauma Explanation: ***Iridodialysis***
- A **D-shaped pupil** strongly suggests **iridodialysis**, which is a disinsertion of the iris root from the ciliary body.
- This typically occurs after **blunt trauma** to the eye, allowing the pupil to be distorted towards the point of detachment.
*Orbital fracture*
- An orbital fracture often presents with **periorbital ecchymosis**, **diplopia**, **enophthalmos**, or **proptosis**, depending on the fracture location.
- While it results from blunt trauma, it doesn't directly cause a D-shaped pupil but can lead to other ocular complications.
*Traumatic hyphema*
- Traumatic hyphema is characterized by **blood in the anterior chamber** of the eye, which can be visible as a red fluid level.
- While caused by blunt trauma, it typically presents with blurred vision and pain, not a D-shaped pupil.
*Iridoschisis*
- Iridoschisis is a rare condition involving the **splitting of the iris stroma**, usually in the elderly, and is not typically associated with acute trauma or a D-shaped pupil.
- It often leads to **fine, detached iris fibers** floating in the anterior chamber, rather than a gross deformation of the pupil.
Blunt Trauma Indian Medical PG Question 4: Secondary glaucoma associated with angle recession is seen in:
- A. Penetrating injury
- B. Concussion injury (Correct Answer)
- C. Chemical injury
- D. Radiation injury
Blunt Trauma Explanation: ***Concussion injury***
- **Concussion injuries** (blunt trauma) to the eye lead to shearing forces between the ciliary body and sclera, causing a tear in the ciliary body and trabecular meshwork.
- This anatomical alteration, known as **angle recession**, impairs aqueous humor outflow over time, leading to secondary open-angle glaucoma.
*Penetrating injury*
- **Penetrating injuries** breach the globe and can cause direct damage to ocular structures, but angle recession leading to glaucoma is more characteristic of blunt trauma.
- Such injuries often lead to other forms of glaucoma, like **pupillary block** or **phacolytic glaucoma**, depending on the extent of damage and inflammation.
*Chemical injury*
- **Chemical injuries** (e.g., acid or alkali burns) cause severe inflammation, tissue necrosis, and scarring within the anterior segment.
- Glaucoma following chemical injury is typically due to **trabecular meshwork damage** from inflammation and scarring, or **peripheral anterior synechiae formation**, rather than angle recession.
*Radiation injury*
- **Radiation injury** to the eye is rare but can occur with radiation therapy for tumors, causing damage to vascular structures and contributing to neovascularization.
- Glaucoma associated with radiation injury is usually secondary to **neovascularization** of the angle or **inflammatory processes**, not angle recession.
Blunt Trauma Indian Medical PG Question 5: Which of the following ophthalmologic conditions shows 'Vossius ring' during examination?
- A. Angle closure glaucoma
- B. Traumatic iritis (Correct Answer)
- C. Retinal detachment
- D. Corneal ulcer
Blunt Trauma Explanation: ***Traumatic iritis***
- A **Vossius ring** is a circular pigment deposit on the anterior lens capsule, formed by the impact of the iris during **ocular trauma**.
- Its presence is a clear indicator of **blunt globe trauma**, which often leads to traumatic iritis.
*Angle closure glaucoma*
- This condition involves an **acute increase in intraocular pressure** due to the iris blocking the drainage angle.
- While it can cause severe pain and vision loss, it does not involve the formation of a **Vossius ring**.
*Retinal detachment*
- This condition involves the separation of the sensory retina from the underlying retinal pigment epithelium.
- Symptoms include **flashing lights**, **floaters**, and a **"curtain" vision loss**, with no association with a Vossius ring.
*Corneal ulcer*
- A corneal ulcer is an **open sore on the cornea**, typically caused by infection or injury.
- It presents with **pain**, **photophobia**, **redness**, and **discharge**, without the characteristic lens pigment deposit.
Blunt Trauma Indian Medical PG Question 6: Berlin's edema is due to
- A. Blunt trauma to eye (Correct Answer)
- B. Choroidal melanoma
- C. Pars planitis
- D. Extradural hemorrhage
Blunt Trauma Explanation: ***Blunt trauma to eye***
- **Berlin's edema**, also known as **commotio retinae**, is a form of **retinal edema** that occurs after **blunt trauma to the eye**.
- The trauma causes a disruption of the photoreceptor outer segments and retinal pigment epithelium, leading to extracellular and intracellular fluid accumulation.
*Choroidal melanoma*
- This is a **malignant tumor** arising from the melanocytes in the choroid, not caused by trauma.
- Presents as a pigmented mass in the choroid and can lead to **retinal detachment** or **vision loss** due to tumor growth.
*Pars planitis*
- This is a form of **intermediate uveitis**, characterized by inflammation of the pars plana, ciliary body, and peripheral retina.
- It is an **inflammatory condition**, not directly caused by acute trauma, and often presents with **floaters** and **blurred vision**.
*Extradural hemorrhage*
- This refers to bleeding between the inner surface of the skull and the dura mater, typically in the brain.
- It is a **neurological emergency** usually caused by head injury, and its direct effect is not Berlin's edema in the eye.
Blunt Trauma Indian Medical PG Question 7: Hyphaema, or blood in the anterior chamber, is suggestive of:
- A. Intraocular trauma (Correct Answer)
- B. Posterior uveitis
- C. Capillary hemangioma of the lid
- D. High grade myopia
Blunt Trauma Explanation: ***Intraocular trauma***
- **Hyphaema**, or blood in the **anterior chamber**, is a classic sign of **intraocular trauma**, where eye structures are damaged, leading to bleeding.
- This can result from blunt force or penetrating injuries that rupture blood vessels within the **iris, ciliary body**, or other anterior segment structures.
*Posterior uveitis*
- Posterior uveitis involves inflammation of the **choroid and retina**, not typically causing bleeding into the **anterior chamber**.
- It presents with symptoms like **floaters** and **decreased vision**, without direct hyphaema.
*Capillary hemangioma of the lid*
- A capillary hemangioma is a **benign vascular tumor** on the eyelid and does not cause **intraocular bleeding** into the anterior chamber.
- While it can disrupt vision by blocking the visual axis, it is an **external lesion**.
*High grade myopia*
- High grade myopia leads to a **stretched globe** and **retinal thinning**, increasing the risk of **retinal detachment** or **macular degeneration**.
- It does not directly cause **hyphaema**, which is an anterior chamber bleeding event.
Blunt Trauma Indian Medical PG Question 8: A patient sustained blunt trauma to the eye, after which he developed sudden loss of vision with deep anterior chamber. Most likely cause is:
- A. Retinal haemorrhage
- B. Lens dislocation (Correct Answer)
- C. Berlin's oedema
- D. Recession of angle of AC
Blunt Trauma Explanation: ***Lens dislocation***
- **Blunt trauma** can cause **zonular rupture**, leading to **lens dislocation** into the vitreous or anterior chamber.
- A dislocated lens in the vitreous space results in a **deep anterior chamber** and sudden vision loss due to loss of the refractive power of the lens.
*Retinal haemorrhage*
- While blunt trauma can cause **retinal haemorrhage**, it typically does not present with a **deep anterior chamber**.
- Vision loss from retinal haemorrhage depends on its size and location, but it's not directly associated with changes in anterior chamber depth.
*Berlin's oedema*
- Also known as **commotio retinae**, this condition involves **retinal oedema** due to blunt trauma, causing sudden vision loss.
- However, Berlin's oedema is a retinal condition and does not typically alter the **depth of the anterior chamber**.
*Recession of angle of AC*
- **Angle recession** is a common consequence of blunt trauma, where the ciliary body detaches from the scleral spur, causing a widening of the **anterior chamber angle**.
- While it can lead to **secondary glaucoma** over time, it typically does not cause **sudden profound vision loss** immediately after trauma and does not necessarily result in a *deep* anterior chamber.
Blunt Trauma Indian Medical PG Question 9: Vossius ring occurs in
- A. Lens dislocation
- B. Concussion injury (Correct Answer)
- C. Penetrating injury
- D. Extra capsular extraction
Blunt Trauma Explanation: ***Concussion injury***
- A Vossius ring is a circular deposit of **iris pigment** on the anterior lens capsule, formed by direct contact between the iris and the lens following **blunt ocular trauma**.
- This typically occurs during a **concussion injury** to the eye, where the force temporarily compresses the iris against the lens.
*Lens dislocation*
- While lens dislocation is also a traumatic injury, a Vossius ring is not a direct consequence but rather a separate finding.
- Lens dislocation involves the displacement of the **lens from its normal position**, often due to rupture of zonular fibers.
*Penetrating injury*
- A penetrating injury involves a **breach of the globe's integrity**, often by a sharp object, leading to different sequelae such as uveal prolapse or traumatic cataract.
- Vossius rings are characteristic of **blunt trauma**, not penetrating trauma.
*Extra capsular extraction*
- Extracapsular extraction is a surgical procedure for **cataract removal**, not a type of injury.
- This procedure involves removing the lens nucleus and cortex while leaving the posterior capsule intact.
Blunt Trauma Indian Medical PG Question 10: Sympathetic ophthalmia is due to
- A. Chemical injury
- B. Blunt trauma
- C. Retained intra ocular Iron foreign body
- D. Penetrating trauma (Correct Answer)
Blunt Trauma Explanation: ***Penetrating trauma***
- **Sympathetic ophthalmia** is a rare, bilateral granulomatous panuveitis that occurs after **penetrating trauma** or surgery to one eye (the exciting eye).
- The injury exposes **uveal antigens** to the immune system, leading to a delayed hypersensitivity reaction affecting both the injured and the uninjured (sympathizing) eye.
*Chemical injury*
- Chemical injuries to the eye typically cause corneal damage, conjunctivitis, and uveitis, but do not commonly lead to the bilateral immune response characteristic of **sympathetic ophthalmia**.
- The mechanism of injury in chemical trauma does not involve the exposure of hidden ocular antigens in a way that triggers **autoimmune uveitis**.
*Blunt trauma*
- **Blunt trauma** to the eye can cause various issues like hyphema, retinal detachment, or orbital fractures.
- While it can cause significant damage, it generally does not typically breach the globe in a manner that exposes uveal tissue to the systemic immune system, leading to **sympathetic ophthalmia**.
*Retained intra ocular Iron foreign body*
- An intraocular **iron foreign body** can cause **siderosis bulbi**, a condition where iron deposition leads to pigmentation and degeneration of ocular tissues.
- This is a direct toxic effect of iron and is distinct from the immune-mediated inflammation seen in **sympathetic ophthalmia**.
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