Community Medicine
3 questionsIn Ayushman Bharat under School Health Services, which of the following is not included?
The incubation period of a disease is 5-14 days. What should be the quarantine period?
What is the period called between the entry of an organism into the host and the point of maximum infectivity?
NEET-PG 2024 - Community Medicine NEET-PG Practice Questions and MCQs
Question 301: In Ayushman Bharat under School Health Services, which of the following is not included?
- A. Health check-up/screening
- B. Albendazole provision
- C. Monthly Iron Folic Acid Supplementation
- D. Providing free spectacles (Correct Answer)
Explanation: ***Providing free spectacles*** - Under Ayushman Bharat School Health Services and RBSK (Rashtriya Bal Swasthya Karyakram), while **vision screening** is universally implemented, the provision of **free spectacles** is not uniformly guaranteed across all states and depends on fund availability and state-level implementation. - The primary focus remains on **screening and referral**, with spectacle provision being supplementary rather than a core mandated service compared to the other interventions listed. - Unlike the other three services which are universally delivered, free spectacles provision shows **geographic and implementation variability**. *Health check-up/screening* - **Comprehensive health check-ups** and screenings are a mandatory core component of the Ayushman Bharat School Health Program implemented uniformly across all states. - This includes screening for common conditions like **vision problems**, **hearing impairments**, **dental issues**, and growth monitoring. *Albendazole provision* - The administration of **Albendazole** for biannual deworming is a standard, universally implemented practice under the National Deworming Day initiative integrated with School Health Programs. - This is part of a broader strategy to improve the **nutritional status** and overall health of school-going children. *Monthly Iron Folic Acid Supplementation* - **Iron Folic Acid (IFA) supplementation** through the Weekly Iron Folic Acid Supplementation (WIFS) program is a key mandated intervention to combat **anemia** among adolescents (10-19 years). - This is universally implemented through School Health Services and directly contributes to improving **cognitive function** and physical health of students.
Question 302: The incubation period of a disease is 5-14 days. What should be the quarantine period?
- A. 5 days
- B. 10 days
- C. 14 days (Correct Answer)
- D. 20 days
Explanation: ***14 days*** - The **quarantine period** should be equal to or slightly longer than the **maximum incubation period** of the disease. - In this case, 14 days covers the entire potential incubation range of 5-14 days, ensuring any exposed individual would develop symptoms within this period if infected. *5 days* - A 5-day quarantine period is too short as it is equal to the **minimum incubation period** and would not capture individuals with longer incubation times. - An individual could become symptomatic and transmit the disease after the 5-day quarantine if their incubation period was longer. *10 days* - A 10-day quarantine period is insufficient as it falls short of the **maximum incubation period** of 14 days. - An individual could still develop symptoms and become infectious up to 4 days after completing a 10-day quarantine. *20 days* - A 20-day quarantine period is unnecessarily long as it exceeds the **maximum incubation period**. - While it ensures coverage of the incubation period, it imposes excessive burden and resource utilization without added public health benefit.
Question 303: What is the period called between the entry of an organism into the host and the point of maximum infectivity?
- A. Generation Time
- B. Incubation Period
- C. Latent Period (Correct Answer)
- D. Prodromal Period
Explanation: ***Latent Period*** - The **latent period** is the time from entry of an organism into the host until the host becomes **infectious** (able to transmit the disease to others). - During this phase, the organism replicates within the host, but the host is not yet shedding sufficient pathogen to transmit infection. - This period ends when the host begins to shed the pathogen and can transmit it to susceptible individuals, which often coincides with peak infectivity in many diseases. - The latent period is crucial in epidemiology for understanding disease transmission dynamics and implementing control measures. *Generation Time* - **Generation time** (or serial interval) in epidemiology refers to the time interval between the onset of infection in a primary case and the onset of infection in a secondary case. - It reflects the average time between successive generations in a chain of transmission. - This is distinct from the latent period and does not specifically address the period until infectivity begins. *Incubation Period* - The **incubation period** is the time between exposure to an infectious agent and the **onset of clinical symptoms**. - It may overlap with or differ from the latent period; some diseases are infectious before symptoms appear (e.g., measles, chickenpox), while others become infectious only after symptoms develop. - The incubation period does not directly correlate with the timing of infectivity. *Prodromal Period* - The **prodromal period** occurs after the incubation period and is characterized by the appearance of **early, nonspecific symptoms** (e.g., malaise, fever, fatigue). - These symptoms precede the characteristic manifestations of the disease. - During the prodromal period, the person may already be infectious, but this period is defined by symptom characteristics, not infectivity timing.
Dermatology
3 questionsA patient's skin biopsy shows a box-shaped or square-shaped pattern of inflammatory infiltrate, as shown in the image. What is the most likely diagnosis?
A patient presents with orange-hued skin lesions and hyperkeratotic palms and soles. A biopsy shows alternating parakeratosis and orthokeratosis. What is the most likely diagnosis?
A patient presents with annular, scaly plaques with perifollicular extension on the trunk. What is the most likely diagnosis?
NEET-PG 2024 - Dermatology NEET-PG Practice Questions and MCQs
Question 301: A patient's skin biopsy shows a box-shaped or square-shaped pattern of inflammatory infiltrate, as shown in the image. What is the most likely diagnosis?
- A. Lichen planus (Correct Answer)
- B. Lichen amyloidosis
- C. Morphea
- D. Lichen nitidus
Explanation: ***Lichen planus*** - The image shows a characteristic **"box-shaped" or "square-shaped" infiltrate** of lymphocytes at the dermal-epidermal junction, obscuring the basal layer. - Other features consistent with lichen planus include **hypergranulosis**, **sawtooth rete ridges**, and **Civatte bodies** (apoptotic keratinocytes) in the basal layer. *Lichen amyloidosis* - This condition is characterized by deposition of **amyloid material** in the papillary dermis, often associated with keratinocyte necrosis. - While it can present with pruritic papules similar to lichen planus, the histology specifically shows **amyloid deposits**, not the typical basal cell damage or band-like infiltrate seen in the image. *Morphea* - Morphea is a form of localized scleroderma, characterized by **thickening of collagen bundles** in the dermis and subcutaneous tissue, leading to hardened skin plaques. - Histologically, it involves **sclerosis** and homogenization of collagen, with a sparse inflammatory infiltrate, which is distinct from the dense band-like infiltrate and epidermal changes shown. *Lichen nitidus* - Lichen nitidus is characterized by **small, discrete granulomas** within the papillary dermis (the "ball-and-claw" appearance), with epithelial extensions embracing the inflammatory infiltrate. - It involves a more **localized inflammatory process** and distinct granulomatous appearance, rather than the broad, band-like infiltrate seen across the dermal-epidermal junction in this image.
Question 302: A patient presents with orange-hued skin lesions and hyperkeratotic palms and soles. A biopsy shows alternating parakeratosis and orthokeratosis. What is the most likely diagnosis?
- A. Pityriasis rubra pilaris (Correct Answer)
- B. Follicular psoriasis
- C. Keratosis follicularis
- D. Ichthyosis vulgaris
Explanation: ***Pityriasis rubra pilaris*** - This condition classically presents with **salmon-colored to orange-hued plaques** and **hyperkeratotic palms and soles**. - Histologically, Pityriasis rubra pilaris is characterized by **alternating parakeratosis and orthokeratosis** in vertical and horizontal directions ("checkerboard" pattern). *Follicular psoriasis* - While psoriasis can present with hyperkeratosis and scales, **follicular psoriasis** specifically involves the hair follicles, seen as follicular papules and pustules. - The classic alternating parakeratosis and orthokeratosis is more indicative of PRP than of follicular psoriasis, which typically shows more uniform parakeratosis. *Keratosis follicularis* - Also known as Darier disease, this condition presents with **greasy, crusted, foul-smelling papules** on seborrheic areas. - Histopathology reveals characteristic **dyskeratosis** with acantholytic cells (corps ronds and grains), which is different from the described alternating parakeratosis and orthokeratosis. *Ichthyosis vulgaris* - This is a genetic disorder characterized by **dry, scaly skin** due to impaired epidermal barrier function, often worse in winter. - Histopathology typically shows a **diminished or absent granular layer** and compact orthokeratosis without parakeratosis, differing from the biopsy findings.
Question 303: A patient presents with annular, scaly plaques with perifollicular extension on the trunk. What is the most likely diagnosis?
- A. Psoriasis
- B. Lichen planus
- C. Tinea (Correct Answer)
- D. Pityriasis versicolor
Explanation: ***Tinea*** - **Tinea corporis** classically presents with **annular, scaly plaques with central clearing** and an active, raised border. - On hairy areas or with follicular involvement, dermatophyte infections show **perifollicular extension** as the fungus invades hair follicles. - The **annular morphology with scale** is pathognomonic for dermatophyte infection, confirmed by **KOH preparation** showing septate hyphae. - Common sites include trunk, limbs, and any body area with hair follicles. *Psoriasis* - Presents with **well-demarcated, erythematous plaques** with **silvery-white scales**, typically on extensor surfaces (elbows, knees, scalp). - **Follicular psoriasis** is rare and shows **pinpoint follicular papules**, not annular plaques with perifollicular extension. - Auspitz sign (pinpoint bleeding on scale removal) helps differentiate from tinea. *Lichen planus* - Characterized by **pruritic, polygonal, purple, planar papules** (the "6 Ps"). - **Lichen planopilaris** (follicular variant) causes **scarring alopecia** with follicular hyperkeratosis, not annular scaly plaques. - Wickham striae may be visible on mucosal surfaces. *Pityriasis versicolor* - Caused by **Malassezia species**, presents as **hypo- or hyperpigmented macules** with fine scale on trunk and upper arms. - **Follicular variant** (pityriasis folliculorum) shows discrete follicular papules, NOT annular plaques. - "Spaghetti and meatballs" appearance on KOH prep (short hyphae and spores) differentiates from dermatophytes.
Forensic Medicine
1 questionsA man presented with bilateral non-inflammatory edema after consuming a particular oil. Which test should be performed by the drug inspector to check for the adulterant?
NEET-PG 2024 - Forensic Medicine NEET-PG Practice Questions and MCQs
Question 301: A man presented with bilateral non-inflammatory edema after consuming a particular oil. Which test should be performed by the drug inspector to check for the adulterant?
- A. Paper chromatography test
- B. Nitric acid test (Correct Answer)
- C. Methylene Blue Reduction Test
- D. Baudouin test
Explanation: ***Nitric acid test*** - The **nitric acid test** is used to detect the presence of **argemone oil** in mustard oil, which is a common adulterant. - **Argemone oil** ingestion can cause **epidemic dropsy**, characterized by bilateral non-inflammatory edema. *Paper chromatography test* - **Paper chromatography** is a technique used for separating and identifying components of a mixture based on differences in their partition coefficient between a stationary and a mobile phase. - While it can identify various substances, it is not the primary or most rapid test specifically for **argemone oil adulteration** when epidemic dropsy is suspected. *Methylene Blue Reduction Test* - The **Methylene Blue Reduction Test** (MBRT) is primarily used in **dairy products** to assess the microbiological quality of milk. - It measures the time taken for methylene blue to decolorize, indicating the number of viable microorganisms, and is not relevant for detecting oil adulterants. *Baudouin test* - The **Baudouin test** is used to detect the presence of **sesame oil** in other oils. - While an important test for adulteration, it is not specific for **argemone oil**, which causes the symptoms described.
Internal Medicine
2 questionsA patient presents with loss of sensation along the ulnar nerve path. The histology is shown in the image, and a Lepromin test was performed. What is the expected outcome?
A patient presents with itchy skin lesions with blistering along with gastrointestinal issues. Which of the following is the most specific serological test for this condition?
NEET-PG 2024 - Internal Medicine NEET-PG Practice Questions and MCQs
Question 301: A patient presents with loss of sensation along the ulnar nerve path. The histology is shown in the image, and a Lepromin test was performed. What is the expected outcome?
- A. Tuberculoid leprosy with lepromin positive (Correct Answer)
- B. Borderline leprosy with lepromin positive
- C. Lepromatous leprosy with lepromin positive
- D. Scrofuloderma
Explanation: ***Tuberculoid leprosy with lepromin positive*** - The image shows **epithelioid cell granulomas** with sparse lymphocytes, characteristic of a **strong cell-mediated immune response** seen in tuberculoid leprosy. - Patients with tuberculoid leprosy typically have a **positive lepromin skin test**, indicating a robust CMI response capable of containing the infection. *Borderline leprosy with lepromin positive* - Borderline leprosy exhibits a wider spectrum of histological features, often with a mix of tuberculoid and lepromatous characteristics, and is typically **lepromin variable or weakly positive**. - The significant presence of well-formed granulomas in the image points more strongly towards the tuberculoid pole rather than borderline forms. *Lepromatous leprosy with lepromin positive* - Lepromatous leprosy is characterized by a **weak or absent cell-mediated immune response**, leading to diffuse infiltration of **foamy macrophages (Virchow cells)** packed with abundant *M. leprae*, and the **absence of well-formed granulomas**. - Patients with lepromatous leprosy are typically **lepromin negative** due to their anergic immune state. *Scrofuloderma* - **Scrofuloderma** is a form of **cutaneous tuberculosis** resulting from direct extension of underlying tuberculous lymphadenitis or osteomyelitis to the skin. - While it involves granulomatous inflammation, the clinical context of ulnar nerve involvement and the specific histological appearance of well-formed epithelioid granulomas with sparse bacilli are more indicative of tuberculoid leprosy.
Question 302: A patient presents with itchy skin lesions with blistering along with gastrointestinal issues. Which of the following is the most specific serological test for this condition?
- A. Anti-TTG antibody
- B. Anti-nuclear antibody
- C. Anti-endomysial antibody (Correct Answer)
- D. IgA deposits at the dermoepidermal junction
- E. Anti-desmoglein antibody
Explanation: ***Anti-endomysial antibody*** - The combination of **itchy, blistering skin lesions** and **gastrointestinal issues** is highly suggestive of **Dermatitis Herpetiformis**, which is the cutaneous manifestation of **celiac disease**. - **Anti-endomysial antibody (EMA)**, particularly IgA, is highly specific (nearly 100%) for **celiac disease** and thus for Dermatitis Herpetiformis, especially when tested on primate esophagus. *Anti-TTG antibody* - **Anti-tissue transglutaminase (tTG) antibody** (IgA) is a sensitive and specific serological marker for **celiac disease** and is often the first-line test. - While highly indicative, **EMA** is generally considered to have slightly higher specificity than tTG for celiac disease, particularly in predicting intestinal villous atrophy. *Anti-nuclear antibody* - **Anti-nuclear antibodies (ANA)** are primarily associated with **systemic autoimmune diseases** like Systemic Lupus Erythematosus. - They are not specific for **celiac disease** or **Dermatitis Herpetiformis**. *Anti-desmoglein antibody* - **Anti-desmoglein antibodies** (anti-Dsg1 and anti-Dsg3) are specific for **pemphigus vulgaris** and **pemphigus foliaceus**, which are autoimmune blistering disorders. - While these conditions present with blistering, they typically lack the gastrointestinal symptoms and the specific pruritic, grouped vesicular pattern seen in **Dermatitis Herpetiformis**. - This is not the appropriate serological test for DH/celiac disease. *IgA deposits at the dermoepidermal junction* - The presence of **granular IgA deposits at the dermoepidermal junction** (dermal papillae) is the **gold standard for diagnosing Dermatitis Herpetiformis** through **direct immunofluorescence** of a skin biopsy. - However, this is a **histopathological finding**, not a serological test, and therefore does not fit the question's criteria for a "serological test."
Microbiology
1 questionsA 27-year-old patient presents with motheaten alopecia, moist perianal lesions, and an asymptomatic macular rash. What is the most likely causative organism?
NEET-PG 2024 - Microbiology NEET-PG Practice Questions and MCQs
Question 301: A 27-year-old patient presents with motheaten alopecia, moist perianal lesions, and an asymptomatic macular rash. What is the most likely causative organism?
- A. Haemophilus
- B. Klebsiella
- C. Treponema (Correct Answer)
- D. Herpes Simplex
Explanation: ***Treponema*** - The constellation of **motheaten alopecia**, **moist perianal lesions** (condyloma lata), and an **asymptomatic macular rash** is highly characteristic of **secondary syphilis**, caused by *Treponema pallidum*. - **Condyloma lata** are highly infectious, raised plaques found in moist areas, and the rash can affect palms and soles. *Haemophilus* - *Haemophilus influenzae* is primarily associated with **respiratory infections** (e.g., otitis media, epiglottitis, pneumonia) and sometimes meningitis. - It does not cause the specific dermatological manifestations described in the patient. *Klebsiella* - *Klebsiella pneumoniae* is a common cause of **nosocomial infections**, particularly **pneumonia** (often with currant jelly sputum), **UTIs**, and wound infections. - It is not associated with skin conditions like alopecia or maculopapular rashes typical of syphilis. *Herpes Simplex* - Herpes Simplex Virus (HSV) causes **vesicular or ulcerative lesions**, commonly known as cold sores or genital herpes. - It does not cause motheaten alopecia, moist perianal plaques (condyloma lata), or an asymptomatic macular rash in the same manner as syphilis.