NEET MDS Shorts
84618
Pathology
Enlarged hypersegmented neutrophils are typically seen in Megaloblastic
anemia (option 3). Here is a detailed explanation:
1. Leukopenia: Leukopenia is a condition where there is a decrease in the total
number of white blood cells (WBCs) in the bloodstream. It does not directly
refer to the morphological changes in the neutrophils. The presence of enlarged
or hypersegmented neutrophils is not a hallmark feature of leukopenia; rather,
the condition is characterized by a low WBC count.
2. Leukocytosis: Leukocytosis is the medical term for an increase in the number
of white blood cells in the bloodstream. It can occur due to various conditions
like infections, inflammation, or leukemia. However, hypersegmentation of
neutrophils is not a typical finding in leukocytosis. The presence of enlarged
neutrophils is also not characteristic of this condition.
3. Megaloblastic anemia: Megaloblastic anemia is a type of anemia that occurs
due to the lack of vitamin B12 or folic acid. These vitamins are essential for
the maturation of red blood cells in the bone marrow. In the case of vitamin B12
or folic acid deficiency, the red blood cells become large and immature, leading
to their inability to function properly. Additionally, neutrophils, which are a
type of white blood cell, can also become enlarged and hypersegmented in
megaloblastic anemia. The enlarged neutrophils are called "megaloblastic
neutrophils" or "hypersegmented neutrophils." The hypersegmentation occurs due
to the defect in DNA synthesis that results from the vitamin deficiency, causing
the nucleus of the neutrophil to segment more than the normal 2-5 lobes.
4. Acute myeloid leukemia: While acute myeloid leukemia (AML) is characterized
by an overproduction of immature myeloid cells, including neutrophils, enlarged
hypersegmented neutrophils are not a typical feature of this condition. In AML,
the bone marrow is filled with abnormal, immature cells called blasts, which do
not mature properly and function as normal blood cells. However, AML can present
with a variety of morphological changes in neutrophils, such as Auer rods, but
hypersegmentation is not specific to AML.
Enlarged hypersegmented neutrophils are most commonly associated with
Megaloblastic anemia, which is caused by vitamin B12 or folic acid deficiency
and leads to abnormal cell maturation in the bone marrow, affecting both red and
white blood cells.
48846
Pharmacologyless solublity in blood means more rapid induction, however quicker emergence after discontinuing depends upon solublity and redistribution in lipids of body as well
55752
RadiologyExplanation: This statement is false because if the developing time is too long, it typically results in an overexposed radiograph, which appears too dark. However, if the developing time is too short, it can lead to an underexposed radiograph, which appears too light.
77878
Prosthodontics
79967
Oral SurgeryBell's palsy is a form of temporary facial paralysis or weakness on one side of the face resulting from damage or trapping of the facial nerve (cranial nerve VII), which is the nerve that controls the muscles of facial expression.
71588
Oral SurgeryProphylactic antibiotics are given to patients with certain heart conditions, including rheumatic heart disease, before specific procedures like oral surgery. The goal is to prevent bacteria from the mouth from entering the bloodstream and causing an infection of the heart lining or valves, known as subacute bacterial endocarditis (SBE).
29634
Dental Materials
Giomers are hybrid aesthetic restorative materials that employ PRG technology. The chemical composition includes fluoraluminosilicate glass reacted with polyalkenoic acid, which is then included in a silica-filled urethane resin matrix.
77197
Prosthodontics
The Bull rule pertains to the concept of occlusal balance during lateral
movements in dentistry. It suggests that certain cusps may need to be adjusted
or ground to achieve a balanced occlusion, particularly in the context of
removable prosthodontics or fixed restorations. Ante's rule (option 1) relates to the relationship between the anterior and
posterior teeth in occlusion.
84088
NEETMDS
The combination of abdominal cramps, hypersalivation, fever, skin rashes on palms and soles, generalized gingival inflammation, and multiple oral ulcers is characteristic of heavy metal poisoning, specifically mercury poisoning (acrodynia).
26560
RadiologyFogging of X-ray film affects the contrast of an intraoral film because it increases film density resulting in an overall gray radiograph.