AIM Exam Arena
4th Year MBBS
20 A-Type SBA MCQs
KMU Past Paper Practice
Anemia Across the Lifespan: Evaluation, Diagnosis & Management
Context-rich Single Best Answer questions designed to reflect KMU professional examination reasoning and clinical application.
MCQ 1
Question:
Two patients have a hemoglobin concentration of 8.5 g/dL. One developed anemia rapidly after recent blood loss, while the other developed anemia gradually over several months. The first patient has much greater dizziness and breathlessness. Which factor best explains the difference in symptoms?
Higher serum ferritin concentration
Lower mean corpuscular volume
Less time for physiological compensation
Greater red-cell size variation
Higher circulating platelet count
Correct Answer: Less time for physiological compensation
Explanation: The clinical impact of anemia depends on both hemoglobin level and rate of onset. Rapid falls allow less time for cardiovascular and tissue adaptation.
MCQ 2
Question:
A young woman has a microcytic anemia. Her CBC also shows marked variation in red-cell size. Which interpretation best fits this additional finding?
It supports a nutritional deficiency pattern
It confirms immune-mediated hemolysis
It indicates physiological hemodilution
It establishes bone-marrow failure
It confirms acute blood loss
Correct Answer: It supports a nutritional deficiency pattern
Explanation: Increased red-cell size variation, reflected by a raised RDW, can support nutritional deficiency when interpreted with the rest of the blood picture.
MCQ 3
Question:
A 5-year-old child is being evaluated for chronic anemia. The physician has already documented the presenting symptoms and previous illnesses. Which additional assessment is particularly important because this patient is a child?
Detailed occupational exposure history
Assessment of menopausal status
Evaluation of cardiac enzyme levels
Routine assessment of adult cardiovascular risk
Feeding, growth and developmental assessment
Correct Answer: Feeding, growth and developmental assessment
Explanation: Pediatric anemia assessment must consider feeding, growth and development because both nutritional causes and chronic anemia can affect these domains.
MCQ 4
Question:
A clinically well infant shows a gradual fall in hemoglobin after birth. There is no jaundice, bleeding, infection or other evidence of disease. Which interpretation is most appropriate?
Early bone-marrow failure
Physiological postnatal hemoglobin decline
Acute immune-mediated hemolysis
Severe nutritional iron deficiency
Occult gastrointestinal blood loss
Correct Answer: Physiological postnatal hemoglobin decline
Explanation: A physiological fall in hemoglobin occurs after birth. Absence of pathological clinical features supports a normal postnatal process rather than disease.
MCQ 5
Question:
A young adult is diagnosed with severe aplastic anemia after appropriate marrow assessment. Supportive care has been initiated and hematology review arranged. Which definitive treatment category may be considered according to disease severity and patient factors?
Long-term oral iron alone
Routine splenectomy alone
Folate replacement alone
Immunosuppression or stem-cell transplantation
Hemoglobin electrophoresis with observation
Correct Answer: Immunosuppression or stem-cell transplantation
Explanation: Severe aplastic anemia may require specialist definitive treatment with immunosuppressive therapy or hematopoietic stem-cell transplantation.
MCQ 6
Question:
A patient with known marrow failure develops fever, oral ulcers, spontaneous bruising and gum bleeding. Which management priority best addresses the immediate risks?
Prompt management of infection and bleeding
Immediate long-term oral iron therapy
Dietary folate as sole treatment
Observation until hemoglobin falls further
Routine hemoglobin analysis before treatment
Correct Answer: Prompt management of infection and bleeding
Explanation: Neutropenia increases infection risk while thrombocytopenia increases bleeding risk. Both require urgent supportive management in marrow failure.
MCQ 7
Question:
A patient being evaluated for anemia is found to have multiple petechiae and easy bruising. Which additional hematological abnormality should be specifically considered?
Increased serum ferritin
Raised mean corpuscular volume
Reduced platelet count
Raised reticulocyte count
Reduced serum vitamin B12
Correct Answer: Reduced platelet count
Explanation: Petechiae and spontaneous bruising suggest thrombocytopenia and raise concern that the problem involves more than the red-cell line alone.
MCQ 8
Question:
An adult with anemia has generalized lymphadenopathy and hepatosplenomegaly. There is no obvious dietary deficiency. Which interpretation is most appropriate?
The anemia is physiological
The findings indicate isolated iron depletion
The findings confirm folate deficiency
The anemia requires no additional evaluation
A systemic or hematological disorder should be sought
Correct Answer: A systemic or hematological disorder should be sought
Explanation: Lymphadenopathy and hepatosplenomegaly broaden the differential beyond isolated nutritional anemia and suggest systemic or hematological disease.
MCQ 9
Question:
A child has long-standing anemia, previous transfusions, splenomegaly and characteristic chronic facial and bony changes. Which disease category is most strongly suggested by this pattern?
Acute nutritional anemia
Severe hereditary anemia such as thalassemia
Physiological childhood anemia
Acute gastrointestinal blood loss
Transient folate deficiency
Correct Answer: Severe hereditary anemia such as thalassemia
Explanation: Chronic anemia beginning in childhood with transfusion history, splenomegaly and bony changes strongly suggests a severe inherited anemia.
MCQ 10
Question:
A pregnant woman with confirmed nutritional anemia says she plans to stop prescribed replacement therapy and rely only on an improved diet. Which counselling response best reflects appropriate management?
Diet is sufficient once pregnancy reaches the third trimester
Treatment can stop when fatigue begins to improve
Follow-up is unnecessary if fetal movements remain normal
Continue prescribed replacement with dietary support and follow-up
Replacement is unnecessary unless transfusion is planned
Correct Answer: Continue prescribed replacement with dietary support and follow-up
Explanation: Diet supports treatment but may not correct established deficiency alone. Adherence to appropriate replacement and follow-up remains important.
MCQ 11
Question:
A woman has persistent clinically significant anemia throughout pregnancy. Which fetal outcome is an important recognized concern in addition to impaired fetal growth?
Post-term pregnancy
Prematurity
Fetal macrosomia
Congenital cataract
Polycythemia as the expected outcome
Correct Answer: Prematurity
Explanation: Significant persistent maternal anemia is associated with adverse pregnancy outcomes including prematurity and increased perinatal risk.
MCQ 12
Question:
A woman enters pregnancy with borderline iron stores and develops iron-deficiency anemia later in gestation despite no major bleeding. Which physiological change most contributes to this risk?
Reduced maternal oxygen consumption
Reduced maternal plasma volume
Suppression of intestinal nutrient absorption
Reduced fetal demand for hematopoiesis
Increased maternal iron requirement
Correct Answer: Increased maternal iron requirement
Explanation: Pregnancy substantially increases iron requirements, making iron deficiency more likely when maternal stores are inadequate.
MCQ 13
Question:
A hemodynamically stable adult has confirmed uncomplicated iron-deficiency anemia. Gastrointestinal absorption is intact and oral medication is well tolerated. Which replacement approach is most appropriate?
Oral iron replacement
Routine red-cell transfusion
Folate replacement alone
Immediate immunosuppressive therapy
Stem-cell transplantation
Correct Answer: Oral iron replacement
Explanation: Oral iron is appropriate when iron deficiency is uncomplicated, absorption is adequate and treatment is tolerated.
MCQ 14
Question:
A patient with confirmed iron-deficiency anemia begins effective replacement therapy. Follow-up shows an increasing reticulocyte count before full correction of hemoglobin. What does this finding indicate?
Development of immune hemolysis
Progressive marrow suppression
Failure of iron absorption
Recovery of marrow erythropoiesis
Development of folate deficiency
Correct Answer: Recovery of marrow erythropoiesis
Explanation: In the treatment context, a reticulocyte rise reflects renewed red-cell production and supports an appropriate marrow response to replacement.
MCQ 15
Question:
A newborn is pale soon after delivery. There is a history of significant perinatal blood loss. The infant has no jaundice, and subsequent marrow response is appropriate. Which mechanism best explains the anemia?
Reduced folate absorption
Immune-mediated red-cell destruction
Acute neonatal blood loss
Primary marrow aplasia
Nutritional iron deficiency from milk intake
Correct Answer: Acute neonatal blood loss
Explanation: Pallor after documented perinatal bleeding without jaundice supports blood loss rather than hemolysis as the cause of neonatal anemia.
MCQ 16
Question:
A toddler has confirmed nutritional iron-deficiency anemia related to poor complementary feeding. Which management plan best addresses both the hematological problem and its cause?
Dietary counselling without iron replacement
Blood transfusion followed by unrestricted feeding
Folate replacement without dietary modification
Observation with repeat CBC after several months
Iron replacement with correction of feeding practices
Correct Answer: Iron replacement with correction of feeding practices
Explanation: Pediatric nutritional iron deficiency requires both replacement of depleted iron and correction of the feeding pattern that caused the deficiency.
MCQ 17
Question:
Parents of a child with thalassemia major ask whether the condition will disappear as the child grows older. Which counselling message is most appropriate?
Treatment is needed only during childhood infections
It is a chronic inherited disorder requiring continuing follow-up
The anemia resolves when adult hemoglobin production begins
Long-term monitoring is unnecessary after growth is complete
Dietary iron will gradually eliminate the inherited defect
Correct Answer: It is a chronic inherited disorder requiring continuing follow-up
Explanation: Thalassemia major is a lifelong inherited disorder requiring regular follow-up, treatment monitoring and surveillance of growth and complications.
MCQ 18
Question:
A pregnant woman with confirmed deficiency anemia has little improvement after prescribed treatment. She remains clinically stable. Before changing to a more intensive therapy, which issue should be reviewed first?
Whether physiological hemodilution has completely stopped
Whether the fetus has reached term size
Whether maternal age exceeds 35 years
Treatment adherence and ongoing sources of blood loss
Whether the patient has avoided all dietary iron
Correct Answer: Treatment adherence and ongoing sources of blood loss
Explanation: Apparent treatment failure should prompt reassessment of adherence and continuing causes such as blood loss before unnecessarily escalating therapy.
MCQ 19
Question:
A patient with chronic renal disease develops normocytic anemia with an inappropriately low reticulocyte response. Which mechanism best explains the hematological pattern?
Reduced erythropoietic stimulation and red-cell production
Accelerated immune-mediated red-cell destruction
Increased splenic sequestration of abnormal erythrocytes
Increased maternal plasma-volume expansion
Acute gastrointestinal blood loss with compensation
Correct Answer: Reduced erythropoietic stimulation and red-cell production
Explanation: Renal-related anemia is a production problem; inadequate erythropoietic stimulation produces an inappropriately low reticulocyte response.
MCQ 20
Question:
An adult has unexplained anemia with an increased reticulocyte response. Iron studies do not explain the abnormality. The clinician wants to directly assess red-cell morphology for clues such as abnormal shapes or fragmentation. Which investigation is most appropriate?
Serum folate measurement
Serum ferritin measurement
Peripheral blood film examination
Routine coagulation profile
Serum creatinine measurement
Correct Answer: Peripheral blood film examination
Explanation: The peripheral film directly demonstrates red-cell morphology and can reveal patterns that guide further investigation of anemia.