Welcome to your 9. 🩸 Transfusion Medicine, Blood Safety & Blood-Borne Infections Arena
1.
A 40-year-old woman develops acute respiratory distress after transfusion. Examination shows hypoxemia and bilateral pulmonary infiltrates without evidence of circulatory volume overload. Which pathological process best explains her condition?
2.
Which practice is most important for reducing the risk of transmitting infection through donated blood?
3.
An elderly patient with heart failure develops dyspnea and pulmonary edema after rapid transfusion of several blood units. Which complication is most likely?
4.
A surgical resident sustains a significant blood exposure from a patient infected with hepatitis C. He asks for a drug that can reliably prevent infection immediately after exposure. Which principle should guide management?
5.
A hospital audit identifies repeated transfusion-related errors despite good donor screening. The team proposes a system covering donor selection, collection, infection testing, compatibility assessment, controlled storage, patient identification and adverse-event monitoring. Which principle best describes this approach?
6.
A patient with severe thrombocytopenia develops active mucosal bleeding. Which blood component is most appropriate?
7.
A public-health team compares strategies for controlling hepatitis B and hepatitis C transmission in healthcare settings. Which intervention provides an important preventive advantage for hepatitis B that is unavailable for hepatitis C?
8.
A 45-year-old man with leukemia requires repeated platelet support. The blood bank wishes to obtain a therapeutic platelet component from one donor while returning the remaining blood elements to that donor. Which method is most appropriate?
9.
Why does a hollow-bore needle used for venous access pose an important occupational infection risk?
10.
A patient with clinically significant bleeding has deficiency of multiple coagulation factors. Which component is most appropriate?
11.
A healthcare worker sustains a percutaneous injury while inserting an intravenous line in a patient whose infection status is unknown. During risk assessment, which combination of features is most relevant for estimating the significance of the exposure?
12.
A patient with symptomatic anemia requires transfusion to improve oxygen-carrying capacity. Which blood component is most appropriate?
13.
A junior doctor sustains a needle-stick injury from a used hollow-bore needle. What should be the most appropriate immediate approach?
14.
A vaccinated nurse sustains a needle-stick injury from a patient known to have hepatitis B infection. Which additional information is most important when deciding the appropriate HBV post-exposure approach?
15.
A hospital has excellent laboratory screening but experiences a serious transfusion error because the correct blood unit was administered to the wrong patient. Which safety principle most directly failed?
16.
A patient develops itching and urticaria during a blood transfusion without evidence of hemolysis. Which reaction is most likely?
17.
Which major blood-borne viral infection can be prevented effectively through routine vaccination?
18.
A patient develops high fever, severe rigors and hypotension during transfusion. Bacterial contamination of the blood component is suspected. Which reaction is most likely?
19.
A hospital administrator wants to reduce healthcare-associated hepatitis C transmission in a region with a high background burden of infection. Which intervention would most directly interrupt repeated parenteral exposure between patients?
20.
A child receiving long-term transfusion therapy for a chronic hematological disorder develops progressive excess body iron. Which feature of normal physiology contributes most to this complication?
21.
A previously transfused patient develops a fall in hemoglobin several days after another transfusion. An anamnestic antibody response is suspected. Which complication best fits this presentation?
22.
A patient develops fever, flank pain, hypotension and hemoglobinuria shortly after a blood transfusion. Which reaction is most likely?
23.
A 27-year-old man develops fever and chills during transfusion. There is no hemoglobinuria, marked hypotension or evidence of red-cell destruction. The reaction is attributed to inflammatory mediators and antibodies directed against leukocyte-related antigens. Which diagnosis is most likely?
24.
Whole blood is processed by controlled centrifugation. Which principle primarily allows separation into different components?
25.
A blood service is redesigning its donor program to reduce the probability that an infectious unit enters the blood supply before laboratory testing is performed. Which population-level strategy is most appropriate?
26.
A patient with marked IgA deficiency receives a plasma-containing blood component and rapidly develops respiratory difficulty and severe hypotension. Which mechanism best explains this complication?
27.
Which group contains the major blood-borne viral hazards of occupational exposure in healthcare workers?
28.
A bleeding patient has marked fibrinogen deficiency. Which blood component is the most appropriate replacement?
29.
A patient develops acute hypoxemia and non-cardiogenic pulmonary edema after transfusion. Which complication is most likely?
30.
A woman with disseminated intravascular coagulation continues to bleed despite correction of platelet deficiency. Her fibrinogen level is markedly reduced. Which transfusion strategy most specifically corrects the remaining defect?
31.
A 58-year-old man with severe liver dysfunction develops active gastrointestinal bleeding. Laboratory studies indicate deficiency of several coagulation factors, while his platelet count is adequate. Which component best addresses the underlying hemostatic defect?
32.
Two patients develop pulmonary edema after transfusion. Patient X has evidence of increased intravascular volume, whereas Patient Y has acute hypoxemia without signs of volume excess. Which pairing is most appropriate?
33.
A healthcare worker has just finished drawing blood from a patient. Which action best reduces the risk of needle-stick injury?
34.
A district blood bank screens donations for major transfusion-transmissible infections. In addition to the major viral pathogens, which pair remains particularly relevant to blood-donor screening in Pakistan?
35.
A 32-year-old woman donates blood at a hospital. The transfusion service wants to prepare several therapeutic products from the single donation so that different patients can receive only the component they require. Which processing principle best supports this practice?
36.
Which mechanism best explains a severe acute hemolytic transfusion reaction due to ABO-incompatible blood?
37.
A trauma patient has major acute blood loss involving both circulating volume and red-cell mass. The transfusion team considers whole blood in a setting where an appropriate whole-blood program is available. Which principle best explains this choice?
38.
An immunocompromised patient develops fever, rash and systemic illness after receiving a blood component containing viable donor lymphocytes. The donor cells are attacking recipient tissues. Which complication is most consistent with this mechanism?
39.
Which step most directly reduces the risk of an ABO-incompatible transfusion at the bedside?
40.
Which blood-borne infection is particularly important in Pakistan because of its disproportionately high national burden?
