MCQ Flashcards
- A 30-year-old woman of unknown blood group requires an emergency blood transfusion. Which Blood group would be selected?
a) Group AB Rh D positive
b) Group O Rh D positive
c) Group AB Rh D negative
d) Group O Rh D negative
d) Group O Rh D negative
- Normal neutrophil percentage average in an adult male is:
a) 20%
b) 30%
C) 50%
d) 80%
C) 50%
The main function of blood lymphocytes is:
a) phagocytosis of extracellular infections agents
b) antibodies production
c) migration to site of inflammation
d) histamine release
b) Antibody production
- Low neutrophil count is associated with:
a) Typhoid fever
b) Glucocorticoid therapy
c) Hemorrhage
d) Vigorous exercise
a) Typhoid fever
- According to the Egyptian national standards, the minimum acceptable hemoglobin level for an adult male to donate blood is.
a) 10.0 g/dl
b) 11.0 g/dl
c) 12.0 g/dl
d) 13.0 g/dl
d) 13.0 g/dl
- The following conditions may be associated with thrombocytopenia, EXCEPT.
a) Autoimmune diseases
b) Pregnancy
c) Acute blood loss
d) Hypersplenism
c) Acute blood loss
- Which is NOT a determinant of risk of transmission of viruses from needle stick injury?
a) Prevalence of virus in population
b) Site of exposure
c) Type of exposure
d) Immune status of exposed individual
b) Site of exposure
- Cryoprecipitate is a good choice for the treatment of bleeding in patients with.
a) 1TP
b) hypoprothrombinemia
c) Marivan (Warfarin) toxicity
d) dysfibrinogenemia
d) dysfibrinogenemia
- Which of the following is an error in the lab process?
a) The physician labels the request as “Urgent” if the results are needed as soon as possible
b) A sample was kept in sampling area for 5 hours then sent to the lab
c) A sample for CBC was put in a serum vacutainer
d) A STAT sample results in slowdown of the testing process of other patients.
b) A sample was kept in sampling area for 5 hours then sent to the lab
- In countries where health insurance is applicable, which of the following is TRUE?
a) The physician should make sure to order as much tests as possible
b) Minimum retesting interval should be applied
c) The physician should not order any tests to the patient and use his clinical skill
d) All Tests can be ordered every day to follow up the patients’ condition
b) Minimum retesting interval should be applied
- Which condition is among the causes of sterile pyuria?
a) Bacterial endocarditis
b) Enteric fever
c) Diabetes
d) Leptospirosis
c) Diabetes
- Which respiratory infection may be diagnosed by microbial examination of gastric aspirate?
a) Diagnosis of viral pneumonia in young children
b) Diagnosis of fungal pneumonia in adults
c) Diagnosis of pneumococcal pneumonia in children
d) Diagnosis of tuberculous pneumonia in young children
d) Diagnosis of tuberculous pneumonia in young children
- An ascitic fluid sample is found to be cloudy with numerous cells and high protein level. What is the next step in laboratory investigation?
a) No further testing
b) Microscopic examination
c) Repeating chemical analysis
d) Serological testing
b) Microscopic examination
- Which chemical is used before examining unstained preparations from specimens of cutaneous mycoses?
a) 4 - 8% Sodium hydroxide
b) 5 - 10% Sodium hydroxide
c) 10% Acetyl cysteine
d) 10 - 20% Potassium hydroxide
d) 10 - 20% Potassium hydroxide (KOH)
- What is the febrile condition commonly diagnosed by Paul Bunnel test?
a) Brucellosis
b) Infectious mononucleosis
c) Cytomegalovirus infection
d) Rheumatic fever
b) Infectious mononucleosis
- How many passages are possible to conduct in diploid cell lines?
a) 5-10 passages
b) 10 - 50 passages
c) 50- 100 passages
d) >100 passages
c) 50 - 100 passages
- Pyrexia of undetermined origin may be caused by?
a) Bordetella pertussis
b) Mycobacterium tuberculosis
c) Staphylococcus aureus
d) Streptococcus pneumoniae
b) Mycobacterium tuberculosis
- Which organism is liable to be harmed if the microbiological sample is refrigerated?
a) Escherichia coli
b) Neisseria meningitides
c) Klebsiella pneumoniae
d) Pseudomonas aeruginosa
b) Neisseria meningitides
- What is the medium used for isolation of fungi?
a) Modified Thayer Martin medium
b) Chocolate agar
c) MacConkey’s agar
d) Sabaraud’s dextrose agar (SDA)
d) Sabouraud’s dextrose agar (SDA)
- Choose the proper tube for blood glucose testing
a) Blue topped
b) Lavender topped
c) Green topped
d) Grey topped
Grey topped
- Estimated risk of HIV infection following Needle Stick Injury is.
a) 30%
b) 3%
c) 0.3%
d) 0.03%
c) 0.3%
- The most frequently ordered test in the hematology lab, is.
a) Prothrombin Time and concentration
b) Complete blood count
c) Erythrocyte sedimentation rate
d) Blood Group
b) Complete blood count
- The following are examples of poor transport conditions that can result in a wrong lab
result, EXCEPT.
a) A Parathormone sample arrived at the lab in a chilled container
b) A blood gas sample was left on bench for an hour
c) A blood chemistry’ sample that was left in the refrigerator overnight
d) A sample kept shaken vigorously on the way to the lab
a) A Parathormone sample arrived at the lab in a chilled container
- As regard to the venous sampling procedure, choose the correct answer:
a) The sampling site is cleansed using 100% alcohol
b) The patient should sign a written consent before sampling
c) The skin is penetrated at a 90° angle
d) The vein should be anchored firmly
d) The vein should be anchored firmly