.
Blood and Marrow Transplant Certified Nurse
(BMTCN) Practice Examination Questions &
100% Verified Answers # Ace Your 2026 RN ATI
Med Surg Proctored Exam with Confidence!
1. A patient is scheduled for an allogeneic hematopoietic stem cell
transplantation (HSCT). What is the primary purpose of the conditioning regimen
administered prior to infusion?
Answer: To eradicate the patient's underlying disease (myeloablation) and
provide immunosuppression to prevent graft rejection.
Rationale: Conditioning creates space in the bone marrow niche and
suppresses the recipient's immune system to allow engraftment of donor cells.
Regimens range from fully myeloablative to reduced intensity, balancing disease
control against toxicity.
2. What is the most significant risk factor for developing severe acute Graft
versus Host Disease (aGVHD) post allogeneic transplant?
Answer: Human Leukocyte Antigen (HLA) mismatch between the donor and
recipient.
Rationale: HLA disparity triggers donor T cells to recognize recipient tissues
as foreign. The degree of mismatch directly correlates with incidence and severity
of aGVHD. Matched sibling donors have the lowest risk.
, 3. A patient develops a maculopapular rash on the palms and soles, severe
diarrhea, and elevated bilirubin on Day 28 post allogeneic transplant. What is the
classic triad of symptoms indicating?
Answer: Acute Graft versus Host Disease (aGVHD) of the skin, GI tract, and
liver.
Rationale: aGVHD typically occurs within the first 100 days post transplant.
The Glucksberg or MAGIC grading systems classify severity based on the staging of
these three organ systems.
4. What is the prophylactic medication standardly used to prevent hepatic
sinusoidal obstruction syndrome (SOS/VOD) in high risk patients?
Answer: Ursodeoxycholic acid (Ursodiol) and Defibrotide (for prophylaxis in
some protocols, though Defibrotide is primarily treatment).
Rationale: Ursodiol displaces toxic bile acids and protects hepatocytes.
Defibrotide is the specific treatment for SOS/VOD and has fibrinolytic and anti
thrombotic properties. Heparin or low molecular weight heparin may also be
used prophylactically.
5. A patient presents with weight gain, right upper quadrant pain, tender
hepatomegaly, and jaundice on Day 14 post transplant. What is the most likely
diagnosis?
Answer: Hepatic Sinusoidal Obstruction Syndrome (SOS), also known as
Veno Occlusive Disease (VOD).
Rationale: SOS/VOD results from conditioning induced endothelial damage
to hepatic sinusoids. Fluid retention and thrombocytopenia precede the classic
triad of weight gain, hepatomegaly/ RUQ pain, and hyperbilirubinemia.
6. What is the mechanism of action of Calcineurin Inhibitors (Tacrolimus,
Cyclosporine) used for GVHD prophylaxis?
, Answer: They inhibit calcineurin phosphatase, blocking the
dephosphorylation of Nuclear Factor of Activated T cells (NFAT), thereby
preventing IL 2 production and T cell activation.
Rationale: By inhibiting T cell proliferation, these drugs suppress the donor
immune response against the host. Therapeutic drug monitoring (trough levels) is
essential to prevent toxicity (nephrotoxicity, neurotoxicity).
7. A patient receiving Cyclosporine develops tremors, hypertension, and a
serum creatinine rise from 0.8 to 1.8 mg/dL. What is the priority nursing action?
Answer: Notify the provider, hold the dose if ordered, assess the
medication trough level, and evaluate for thrombotic microangiopathy (TA TMA).
Rationale: Calcineurin inhibitors cause nephrotoxicity via afferent arteriole
vasoconstriction. A dose reduction or switch to an alternative agent is often
required. Magnesium wasting is also common.
8. A 5 year old child is undergoing HSCT. What is the primary long term
endocrine complication related to the conditioning regimen's total body
irradiation (TBI)?
Answer: Growth hormone deficiency and short stature, hypothyroidism,
and gonadal failure/infertility.
Rationale: TBI is toxic to the hypothalamic pituitary axis, thyroid gland, and
gonads. Children require life long endocrinology follow up for hormone
replacement.
9. What is the most common infectious cause of interstitial pneumonia in the
early post engraftment period (Day 30 100) before adequate immune
reconstitution?
Answer: Cytomegalovirus (CMV).
Blood and Marrow Transplant Certified Nurse
(BMTCN) Practice Examination Questions &
100% Verified Answers # Ace Your 2026 RN ATI
Med Surg Proctored Exam with Confidence!
1. A patient is scheduled for an allogeneic hematopoietic stem cell
transplantation (HSCT). What is the primary purpose of the conditioning regimen
administered prior to infusion?
Answer: To eradicate the patient's underlying disease (myeloablation) and
provide immunosuppression to prevent graft rejection.
Rationale: Conditioning creates space in the bone marrow niche and
suppresses the recipient's immune system to allow engraftment of donor cells.
Regimens range from fully myeloablative to reduced intensity, balancing disease
control against toxicity.
2. What is the most significant risk factor for developing severe acute Graft
versus Host Disease (aGVHD) post allogeneic transplant?
Answer: Human Leukocyte Antigen (HLA) mismatch between the donor and
recipient.
Rationale: HLA disparity triggers donor T cells to recognize recipient tissues
as foreign. The degree of mismatch directly correlates with incidence and severity
of aGVHD. Matched sibling donors have the lowest risk.
, 3. A patient develops a maculopapular rash on the palms and soles, severe
diarrhea, and elevated bilirubin on Day 28 post allogeneic transplant. What is the
classic triad of symptoms indicating?
Answer: Acute Graft versus Host Disease (aGVHD) of the skin, GI tract, and
liver.
Rationale: aGVHD typically occurs within the first 100 days post transplant.
The Glucksberg or MAGIC grading systems classify severity based on the staging of
these three organ systems.
4. What is the prophylactic medication standardly used to prevent hepatic
sinusoidal obstruction syndrome (SOS/VOD) in high risk patients?
Answer: Ursodeoxycholic acid (Ursodiol) and Defibrotide (for prophylaxis in
some protocols, though Defibrotide is primarily treatment).
Rationale: Ursodiol displaces toxic bile acids and protects hepatocytes.
Defibrotide is the specific treatment for SOS/VOD and has fibrinolytic and anti
thrombotic properties. Heparin or low molecular weight heparin may also be
used prophylactically.
5. A patient presents with weight gain, right upper quadrant pain, tender
hepatomegaly, and jaundice on Day 14 post transplant. What is the most likely
diagnosis?
Answer: Hepatic Sinusoidal Obstruction Syndrome (SOS), also known as
Veno Occlusive Disease (VOD).
Rationale: SOS/VOD results from conditioning induced endothelial damage
to hepatic sinusoids. Fluid retention and thrombocytopenia precede the classic
triad of weight gain, hepatomegaly/ RUQ pain, and hyperbilirubinemia.
6. What is the mechanism of action of Calcineurin Inhibitors (Tacrolimus,
Cyclosporine) used for GVHD prophylaxis?
, Answer: They inhibit calcineurin phosphatase, blocking the
dephosphorylation of Nuclear Factor of Activated T cells (NFAT), thereby
preventing IL 2 production and T cell activation.
Rationale: By inhibiting T cell proliferation, these drugs suppress the donor
immune response against the host. Therapeutic drug monitoring (trough levels) is
essential to prevent toxicity (nephrotoxicity, neurotoxicity).
7. A patient receiving Cyclosporine develops tremors, hypertension, and a
serum creatinine rise from 0.8 to 1.8 mg/dL. What is the priority nursing action?
Answer: Notify the provider, hold the dose if ordered, assess the
medication trough level, and evaluate for thrombotic microangiopathy (TA TMA).
Rationale: Calcineurin inhibitors cause nephrotoxicity via afferent arteriole
vasoconstriction. A dose reduction or switch to an alternative agent is often
required. Magnesium wasting is also common.
8. A 5 year old child is undergoing HSCT. What is the primary long term
endocrine complication related to the conditioning regimen's total body
irradiation (TBI)?
Answer: Growth hormone deficiency and short stature, hypothyroidism,
and gonadal failure/infertility.
Rationale: TBI is toxic to the hypothalamic pituitary axis, thyroid gland, and
gonads. Children require life long endocrinology follow up for hormone
replacement.
9. What is the most common infectious cause of interstitial pneumonia in the
early post engraftment period (Day 30 100) before adequate immune
reconstitution?
Answer: Cytomegalovirus (CMV).
