Sclerotherapy for Varicose and Spider Veins — MCQs
What is the best method to treat a large port-wine stain?
What is the most common gastrointestinal side effect of oral contraceptives?
Fluid given in first 8 hours to a 28 years old woman with 50 kg weight having burns on both lower limbs?
Which of the following is NOT an effect of Mannitol?
Sclerotherapy for varicose veins is contraindicated in the following condition:
A patient with varicose veins came to the hospital; an intern was on duty. Which test should he perform to assess the competency of deep veins?
Surgery in varicose veins is NOT attempted in the presence of which of the following?
Brodie-Trendelenburg test demonstrates?
Asymptomatic varicose veins would fall under which category of the CEAP classification system?
A cosmetic dermatologist plans to introduce microneedling radiofrequency for acne scars. Which parameter combination would provide optimal collagen remodeling with minimal risk of thermal injury in Fitzpatrick type IV skin?
Sclerotherapy for Varicose and Spider Veins Indian Medical PG Practice Questions and MCQs
Question 1: What is the best method to treat a large port-wine stain?
- A. Radiotherapy
- B. Excision with skin grafting
- C. Pulsed dye laser (Correct Answer)
- D. Tattooing
Explanation: ***Pulsed dye laser*** - The **pulsed dye laser (PDL)** is considered the **gold standard** for treating port-wine stains due to its specific targeting of hemoglobin in the dilated capillaries without damaging surrounding tissue. - This treatment involves multiple sessions to progressively lighten the stain and prevent complications such as **nodularity** and **tissue hypertrophy**. *Radiotherapy* - **Radiotherapy** is generally not recommended for port-wine stains due to its potential for **scarring**, **pigment changes**, and risk of **malignancy**. - It is an aggressive treatment typically reserved for **cancerous conditions** or severe proliferative vascular lesions not amenable to other treatments. *Tattooing* - **Tattooing** involves injecting skin-colored pigments into the lesion to camouflage it, but it does not treat the underlying vascular abnormality. - This method can result in an **artificial appearance**, **uneven coverage**, and potential for **allergic reactions** or infections. *Excision with skin grafting* - **Surgical excision** of a large port-wine stain would result in a **significant scar** and require **skin grafting**, which carries risks of graft failure, poor aesthetic outcome, and color mismatch. - This method is generally reserved for very small, localized lesions or those with significant **nodular hypertrophy** that cannot be effectively managed by laser therapy.
Question 2: What is the most common gastrointestinal side effect of oral contraceptives?
- A. Decreased appetite
- B. Weight loss
- C. Nausea (Correct Answer)
- D. Constipation
Explanation: ***Nausea*** - **Nausea** is a very common gastrointestinal side effect of oral contraceptives, especially during the initial weeks of use, due to the **estrogen component**. - This side effect often **improves over time** as the body adjusts, or can be managed by taking the pill with food or at bedtime. *Weight loss* - Oral contraceptives are **not typically associated with weight loss**; in fact, some users may experience slight weight gain, although studies show no consistent significant effect. - Changes in weight are more often due to **fluid retention** rather than true fat loss. *Decreased appetite* - **Decreased appetite** is not a common side effect of oral contraceptives; rather, some individuals might experience an increased appetite due to hormonal fluctuations. - The hormonal effects on metabolism and appetite are **varied and not consistently demonstrated** to lead to decreased appetite. *Constipation* - **Constipation** is not a frequent gastrointestinal side effect of oral contraceptives; rather, some users may experience changes in bowel habits, but **diarrhea is more commonly reported** than constipation when GI issues occur. - Hormonal contraceptives primarily affect the gut through **estrogen and progestin**, leading to various effects, but constipation is not a predominant one.
Question 3: Fluid given in first 8 hours to a 28 years old woman with 50 kg weight having burns on both lower limbs?
- A. 950 ml
- B. 3600 ml (Correct Answer)
- C. 1900 ml
- D. 7400 ml
Explanation: ***3600 ml*** - Both lower limbs account for **36% TBSA deep burns** (18% for each leg). Using the Parkland formula (4mL x Body weight (kg) x %TBSA burned) gives 4mL x 50kg x 36% = **7200 mL total fluid** for the first 24 hours. - Half of the total fluid (7200 mL / 2 = 3600 mL) should be administered in the **first 8 hours** following the burn injury. *950 ml* - This amount is significantly less than the calculated fluid requirement for a patient with deep burns over 36% TBSA, which would lead to **under-resuscitation** and potential burn shock. - Inadequate fluid resuscitation can result in **organ hypoperfusion** and increased mortality in burn patients. *1900 ml* - While a substantial amount, 1900 mL is still less than half of the calculated 24-hour fluid requirement, meaning this would still lead to **under-resuscitation** in the critical initial 8-hour window. - This represents roughly a quarter of the total 24-hour fluid, which is insufficient for the **initial rapid fluid shift** seen in severe burns. *7400 ml* - This amount represents more than the entire 24-hour fluid requirement according to the Parkland formula (7200 mL). Administering this much fluid in the first 8 hours would lead to **over-resuscitation**. - **Over-resuscitation (fluid creep)** can cause complications such as pulmonary edema, abdominal compartment syndrome, and acute respiratory distress syndrome (ARDS).
Question 4: Which of the following is NOT an effect of Mannitol?
- A. Increases blood osmolality
- B. Increases GFR
- C. Decreases ICP
- D. Increases blood viscosity (Correct Answer)
Explanation: ***Increases blood viscosity*** - Mannitol is an **osmotic diuretic** that works by increasing the osmolality of the blood plasma, which draws water from the interstitial fluid and intracellular compartments into the intravascular space. - This process leads to **hemodilution**, which would decrease blood viscosity rather than increase it. *Increases blood osmolality* - Mannitol, as an **osmotic diuretic**, directly works by increasing the osmolality of the plasma. - This elevated plasma osmolality creates an osmotic gradient that pulls water from cells and interstitial spaces into the blood. *Increases GFR* - By increasing plasma volume through the movement of fluid from the interstitial space, mannitol can lead to **increased renal blood flow** and, consequently, an elevated GFR. - The increased fluid volume delivered to the kidneys also contributes to its diuretic effect. *Decreases ICP* - Mannitol is frequently used to reduce **intracranial pressure** (ICP) because it draws water out of the brain parenchyma into the blood vessels due to its osmotic effect. - This reduction in brain volume lessens the pressure within the skull.
Question 5: Sclerotherapy for varicose veins is contraindicated in the following condition:
- A. Deep vein Thrombosis (Correct Answer)
- B. Varicose ulcers
- C. Pigmentation Over limb
- D. Hemorrhoids
Explanation: ***Deep vein Thrombosis*** - **Sclerotherapy** involves injecting a solution that irritates and scars the vein, causing it to close. If **deep vein thrombosis (DVT)** is present, this procedure could dislodge a **thrombus**, leading to a potentially fatal **pulmonary embolism**. - Additionally, DVT indicates a compromised deep venous system, and treating superficial veins with sclerotherapy when the deep system is inadequate can lead to **worsened venous insufficiency** and complications. *Varicose ulcers* - **Varicose ulcers** are often a complication of **venous insufficiency**, and **sclerotherapy** can sometimes be used cautiously, in conjunction with compression therapy, to treat the underlying insufficient veins that contribute to ulcer formation. - While it's not a universal treatment for all ulcers, the presence of an ulcer itself is not an absolute **contraindication** if the underlying venous pathology can be safely addressed. *Pigmentation Over limb* - **Pigmentation over the limb** (often **hyperpigmentation**) is a common sign of **chronic venous insufficiency** and a cosmetic concern associated with **varicose veins**. - It is not a contraindication to **sclerotherapy**; in fact, successful treatment of the underlying varicose veins can sometimes lead to an improvement in or prevention of further pigmentation. *Hemorrhoids* - **Hemorrhoids** are essentially **varicose veins** of the **anorectal region**. While **sclerotherapy** can be used to treat hemorrhoids (a procedure called sclerotherapy for hemorrhoids), they are distinct from **lower limb varicose veins**. - The presence of hemorrhoids does not contraindicate **sclerotherapy** for leg varicose veins, as they are separate vascular systems and pathologies.
Question 6: A patient with varicose veins came to the hospital; an intern was on duty. Which test should he perform to assess the competency of deep veins?
- A. Ober test
- B. Thomas test
- C. Perthes test (Correct Answer)
- D. Brodie Trendelenburg test
Explanation: ***Perthes test*** - The Perthes test assesses the **patency and competency of the deep venous system** in the leg by observing changes in superficial varicosities during muscle activity. - If the varicosities diminish or disappear with ambulation and a tourniquet applied to compress superficial veins, it indicates that the **deep veins are competent** and can handle venous return. *Ober test* - The Ober test is used to assess the **tightness of the iliotibial band**, not venous competency. - It involves abducting and extending the hip while the patient lies on their side. *Thomas test* - The Thomas test evaluates for **hip flexion contracture**, especially of the iliopsoas muscle. - It is performed by having the patient lie supine and flexing one hip fully while observing the contralateral leg. *Brodie Trendelenburg test* - The Brodie Trendelenburg test is primarily used to assess the **competency of the valves of the saphenofemoral junction and perforating veins** to distinguish between superficial and deep venous insufficiency. - It involves elevating the leg, applying a tourniquet, and then observing refilling patterns of varicose veins upon standing.
Question 7: Surgery in varicose veins is NOT attempted in the presence of which of the following?
- A. Deep vein thrombosis (Correct Answer)
- B. Multiple incompetent perforators
- C. Varicose veins with leg ulcer
- D. None of the above
Explanation: ***Deep vein thrombosis*** - **Surgery in varicose veins is absolutely contraindicated in the presence of DVT** (both acute and chronic) - In **acute DVT**, the deep venous system is already compromised, and removing superficial veins could further impair venous return and worsen the thrombotic state - In **chronic DVT with post-thrombotic syndrome**, the deep veins may be occluded or heavily damaged, and the superficial varicosities often serve as **crucial collateral vessels** to maintain venous drainage—their removal would be detrimental - Surgery should only be considered after complete resolution of acute DVT and adequate anticoagulation *Multiple incompetent perforators* - **NOT a contraindication**—incompetent perforators are actually a common indication for surgical treatment - Incompetent perforators contribute to venous insufficiency and recurrent varicose veins - Can be addressed surgically with **subfascial endoscopic perforator surgery (SEPS)** or endovenous ablation techniques - Their presence often indicates need for more comprehensive treatment alongside superficial venous surgery *Varicose veins with leg ulcer* - **NOT a contraindication**—venous leg ulcers are actually an **indication for varicose vein surgery** - Leg ulcers result from chronic venous hypertension due to venous insufficiency - Surgical treatment (saphenous vein ablation, ligation and stripping, or sclerotherapy) reduces venous hypertension and improves venous drainage - Surgery promotes ulcer healing and prevents recurrence when combined with appropriate wound care *None of the above* - Incorrect because **Deep Vein Thrombosis (DVT) is a well-established contraindication** to varicose vein surgery
Question 8: Brodie-Trendelenburg test demonstrates?
- A. Mid-thigh perforation
- B. Deep vein thrombosis
- C. Calf perforators
- D. Sapheno-femoral incompetence (Correct Answer)
Explanation: ***Sapheno-femoral incompetence*** - The **Brodie-Trendelenburg test** is specifically designed to assess the competence of the **sapheno-femoral valve** and the presence of ascending reflux in varicose veins. - It involves emptying the veins and observing their refilling pattern after releasing proximal compression, indicating incompetent valves if rapid filling occurs from above. *Mid-thigh perforation* - While the test can indirectly suggest involvement of perforators, it does not directly demonstrate **mid-thigh perforator** incompetence as its primary objective. - Other tests or observations of varices would be more specific for individual perforating veins. *Deep vein thrombosis* - The Brodie-Trendelenburg test is not used to diagnose **deep vein thrombosis (DVT)**. - **DVT** diagnosis typically involves clinical assessment, D-dimer testing, and imaging like duplex ultrasonography. *Calf perforators* - The test can give clues about **calf perforator** incompetence if varices refill from below, but it's not the primary focus or a direct diagnostic for them. - Proper assessment of calf perforators often requires more detailed physical examination and duplex ultrasound.
Question 9: Asymptomatic varicose veins would fall under which category of the CEAP classification system?
- A. C1 (Telangiectasias or reticular veins)
- B. C2 (Varicose veins) (Correct Answer)
- C. C3 (Edema)
- D. C4 (Skin changes)
Explanation: ***C2 (Varicose veins)*** - The CEAP classification uses 'C' for clinical manifestations, with **C2 specifically indicating the presence of varicose veins**. - Since the patient has **asymptomatic varicose veins**, C2 accurately captures this clinical state without implying more severe complications. - Varicose veins are classified as C2 **regardless of whether they are symptomatic or asymptomatic**. *C1 (Telangiectasias or reticular veins)* - C1 refers to smaller veins, such as **telangiectasias (spider veins)** and **reticular veins**, which are distinct from the larger, tortuous varicose veins. - These are less prominent venous abnormalities compared to varicose veins. *C3 (Edema)* - C3 indicates the **presence of edema** due to venous insufficiency. - The question specifies **asymptomatic varicose veins** without mention of edema, making C3 incorrect. *C4 (Skin changes)* - C4 denotes **skin changes** related to chronic venous insufficiency, such as pigmentation, eczema, or lipodermatosclerosis. - These are more advanced signs of venous disease and are not present in a patient with only varicose veins without complications.
Question 10: A cosmetic dermatologist plans to introduce microneedling radiofrequency for acne scars. Which parameter combination would provide optimal collagen remodeling with minimal risk of thermal injury in Fitzpatrick type IV skin?
- A. Needle depth 3.5 mm, temperature 70°C, pulse duration 1000 ms
- B. Needle depth 4 mm, temperature 75°C, pulse duration 500 ms
- C. Needle depth 1.5-2 mm, temperature 60-65°C, pulse duration 100-200 ms (Correct Answer)
- D. Needle depth 0.5 mm, temperature 55°C, pulse duration 50 ms
Explanation: ***Needle depth 1.5-2 mm, temperature 60-65°C, pulse duration 100-200 ms*** - Optimal **collagen remodeling** occurs when the tissue is heated to **60-65°C**, which triggers the denaturation of proteins and the subsequent production of new collagen and elastin. - A depth of **1.5-2 mm** specifically targets the **papillary and mid-reticular dermis**, while the shorter pulse duration minimizes **Post-Inflammatory Hyperpigmentation (PIH)** in **Fitzpatrick type IV** skin. *Needle depth 3.5 mm, temperature 70°C, pulse duration 1000 ms* - Temperatures reaching **70°C** and very high pulse durations significantly increase the risk of **thermal necrosis** and bulk heating injuries. - A depth of **3.5 mm** is often too deep for standard facial acne scarring and may damage underlying **subcutaneous structures** or cause permanent scarring. *Needle depth 4 mm, temperature 75°C, pulse duration 500 ms* - High temperatures of **75°C** cause excessive tissue coagulation, which can lead to localized **skin burns** and prolonged downtime. - Excessive needle depth combined with high energy delivery poses a severe risk for **atrophic scarring** and pigmentary changes in darker skin types. *Needle depth 0.5 mm, temperature 55°C, pulse duration 50 ms* - A depth of **0.5 mm** is generally insufficient to reach the collagen-rich dermis required for significant improvement of **depressed acne scars**. - A temperature of **55°C** is below the threshold for effective **collagen denaturation**, resulting in suboptimal clinical outcomes for scar revision.
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