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WHNP Patho Exam #3 Questions With Complete Solutions
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WHNP Patho Exam #3 Questions With Complete Solutions
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WHNP Patho Exam #3 Questions With Complete Solutions8. Following the donation of a unit of blood, how long before
hematocrit begins to increase?
A. One hour
B. Two hours
C. 24 hours
D. Five days
E. Two weeks Correct Answer D. Five days
A 45-year-old male, blood type O, is undergoing chemotherapy.
The chemotherapy results in a decrease in his platelet count,
resulting in a needed platelet transfusion. Which of the
following blood groups would be suitable platelet donors?
A. Type AB only
B. Type O only
C. Types A, B, AB, and O
D. Types A and B only
E. Types A, B, and AB only Correct Answer B. Type O only
A 52-year-old female with type 1 diabetes has had progressive
renal failure over the past three years. She is not on dialysis and
her examination shows no abnormalities. Her hemoglobin level
is 9 g/dL, hematocrit is 29%, and mean corpuscular volume is
92 fL, and a blood smear shows normocytic, normochromic
cells. Which of the following is the most likely cause of the
anemia?
A. Acute blood loss
B. Pernicious anemia
C. Sickle cell disease
D. Erythropoietin deficiency
,E. Hemolytic anemia
F. Polycythemia vera Correct Answer D. Erythropoietin
deficiency
A 62 year old with normal blood work three months ago,
presents with pallor, bone pain, bruising, WBC of 42,000 and
85% of cells in circulation are immature granulocytes. Which
diagnosis of leukemia is accurate? Correct Answer Acute
Myelocytic Leukemia
A 65-year-old with persistent diarrhea is found to be severely
underweight and to have a hematocrit of 26% with mean
corpuscular volume of 110 fl. Her peripheral blood smear shows
oversized red blood cells with bizarre shapes. What is the most
likely cause of her anemia?
A. Absence of erythropoietin because of poor nutrition
B. Gastrointestinal cancer
C. Deficiency of folate, and potentially also vitamin B12
D. Aplastic anemia Correct Answer C. Deficiency of folate,
and potentially also vitamin B12
A 9-year-old boy decided to find out how long he could breathe
into and out of a paper bag. After approximately 2 minutes, his
friends noticed that he was breathing very rapidly and forced
him to stop. Which of the following was the most potent
stimulus for the boy's hyperventilation?
A. Decreased arterial PO2
B. Increased arterial PO2
C. Increased arterial PCO2
D. Decreased arterial PCO2 Correct Answer C. Increased
arterial PC02
, A child with frequent ear infections is found to have reduced
immunoglobulin levels and is unresponsive to vaccination with
the tetanus toxoid. The child has a normal skin test reactivity to
common environmental antigens. Which cell is not functioning
normally?
A. Macrophages
B. Helper T cells
C. cytotoxic T cells
D. B cells Correct Answer D. B cells (reduction in antibody
production);
normal skin test reactivity indicates normal functioning
macrophages, helper T cells, cytotoxic T cells.
A failure to delete self-reactive T cells will lead to:
A. Cancer
B. Leukopenia
C. Leukemia
D. Autoimmune disease Correct Answer D. Autoimmune
Disease
A healthy 3-year-old girl is brought to the emergency
department because of severe uncontrolled nosebleed. She has a
history of ear infections that have improved after treatment. Her
temperature is elevated. She has numerous small bruises on her
arms and legs. Her laboratory studies show: Hemoglobin 4.6
g/dLLeukocyte count 3,000/mm3 Reticulocyte count
0.1%Platelet count 12,000/mm3Which of the following is the
most likely explanation for these findings?
A. Anemia due to blood loss
B. Aplastic anemia
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