Explanation

The Mantoux test, also known as the tuberculin skin test

Primarily involves macrophages, which present the antigen to T cells

Leading to an inflammatory response.

This response is what causes the induration (swelling) at the test site.

Explanation

Ethambutol is known to be toxic to the eyes, potentially causing optic neuritis and vision changes, particularly affecting color vision.

Regular monitoring of visual acuity and color vision is recommended for patients taking ethambutol to detect any signs of ocular toxicity early.

Explanation

Kayser–Fleischer (KF) rings are a common ophthalmologic finding in patients with Wilson disease.

They are caused by the deposition of copper in the Descemet's membrane of the cornea

And are typically observed through slit-lamp examination.

The presence of KF rings is an important diagnostic feature for Wilson's disease

A genetic disorder that leads to excessive accumulation of copper in the liver, brain, and other tissues.

Explanation

Massive proteinuria, typically defined as excreting more than 3.5 grams of protein per day in the urine, is a hallmark feature of nephrotic syndrome.

In this condition, the glomeruli in the kidneys become damaged

Leading to increased permeability to proteins

Resulting in their loss through the urine.

This leads to hypoalbuminemia, edema

Aand other complications associated with nephrotic syndrome.

Explanation

Neuroblastoma is one of the common childhood tumors.

It's a type of cancer that arises from immature nerve cells

Typically affects young children, usually before the age of 5.

Explanation

Aspirin should be avoided in patients with bleeding disorders

To prevent excessive bleeding and related complications.

Aspirin is an NSAID that inhibits platelet function.

In patients with bleeding disorders like hemophilia or von Willebrand disease

Aspirin can further reduce platelet function, increasing the risk of bleeding and worsening their condition.

Explanation

The Philadelphia chromosome, which is associated with chronic myeloid leukemia (CML) and some cases of acute lymphoblastic leukemia (ALL)

Typically detected through cytogenetic analysis of bone marrow samples.

Explanation

In X-ray pelvimetry, when the inlet shows a transverse diameter greater

Then the anterior-posterior diameter, the most common type of pelvis is the gynaecoid pelvis.

This type of pelvis is considered the typical female pelvis

And is most favorable for childbirth due to its rounded shape and wide dimensions.

Explanation