Nokea
The following pathological features is true regarding non-Hodgkin lymphoma (NHL)
- A. Classical Reed-Sternberg (RS) cells are neoplastic cells
- B. B cell phenotype is more common
- C. Contiguous group of lymph nodes are affected
- D. It is not associated with leukemic phase of disease
Correct Answer: B
Rationale: The correct answer is B because B cell phenotype is more common in non-Hodgkin lymphoma (NHL). This is supported by the fact that the majority of NHL cases arise from B cells in the lymphoid tissue. Choice A is incorrect as RS cells are characteristic of Hodgkin lymphoma, not NHL. Choice C is incorrect because NHL can involve non-contiguous lymph nodes. Choice D is incorrect because NHL can have a leukemic phase known as leukemic lymphoma.
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A study is designed to investigate the rates of central line–associated blood stream infections among pediatric hematology/oncology patients. Three common central line types (totally implanted catheter [port], peripherally inserted central catheter [PICC], and tunneled externalized catheter [TEC]) were included in the study. What data structure is central line type?
- A. Continuous
- B. Dichotomous
- C. Nominal
- D. Ordinal
Correct Answer: C
Rationale: The correct answer is C: Nominal. Central line type is a nominal data structure because it represents categories without any inherent order or ranking. In this study, the central line types (port, PICC, TEC) are distinct categories with no numerical significance or order. They are simply different types of central lines used for medical purposes. Continuous (A) data involves numerical values with infinite possibilities, which is not the case here. Dichotomous (B) data consists of only two categories, while in this study there are three central line types. Ordinal (D) data involves categories with a specific order or ranking, which is not applicable to central line types as they do not have a natural order.
Macrocytosis is a characteristic of all except:
- A. an. Of myxedema
- B. methotrexate induced
- C. chronic alcoholism induced liver dis.
- D. SLE
Correct Answer: D
Rationale: Macrocytosis is characterized by enlarged red blood cells. In Systemic Lupus Erythematosus (SLE), macrocytosis is not a typical finding. The other conditions listed - anemia of myxedema, methotrexate-induced macrocytosis, and macrocytosis due to chronic alcoholism-induced liver disease - are associated with macrocytosis due to various underlying mechanisms. Therefore, the correct answer is D, as macrocytosis is not a characteristic feature of SLE.
A nurse is caring for a client who is about to begin alteplase therapy to treat pulmonary embolism. Which of the following drugs should the nurse have available in the event of a severe adverse reaction?
- A. Vitamin K
- B. Aminocaproic acid
- C. Protamine
- D. Deferoxamine
Correct Answer: B
Rationale: Rationale: Aminocaproic acid is used to manage bleeding complications associated with thrombolytic therapy, like alteplase. In case of severe adverse reaction such as uncontrolled bleeding, aminocaproic acid can help by inhibiting fibrinolysis. Vitamin K (A) is not used for this purpose. Protamine (C) is used to reverse heparin anticoagulation, not for thrombolytic therapy. Deferoxamine (D) is used for iron toxicity, not related to thrombolytic therapy. Thus, having aminocaproic acid available is crucial for managing potential adverse reactions during alteplase therapy.
A patient is presented with fever, vomiting, hypotension and facial edema after his business trip back from Africa. Viral hemorrhagic fever is suspected in this patient. Which of the following family does the suspected virus belong to?
- A. Filovirus
- B. Togavirus
- C. Adenovirus
- D. Bunyavirus
Correct Answer: A
Rationale: The correct answer is A: Filovirus. Filoviruses, such as Ebola and Marburg viruses, are known to cause viral hemorrhagic fevers and are commonly found in Africa. The symptoms presented by the patient align with those of filovirus infections. Togavirus (choice B) and Bunyavirus (choice D) are not typically associated with viral hemorrhagic fevers. Adenovirus (choice C) can cause respiratory and gastrointestinal infections but is not known to cause viral hemorrhagic fevers.
A study is designed to investigate the rates of central line–associated blood stream infections among pediatric hematology/oncology patients. Three common central line types (totally implanted catheter [port], peripherally inserted central catheter [PICC], and tunneled externalized catheter [TEC]) were included in the study. What data structure is central line type?
- A. Continuous
- B. Dichotomous
- C. Nominal
- D. Ordinal
Correct Answer: C
Rationale: The correct answer is C: Nominal. The central line types in this study (port, PICC, TEC) are categorical and do not have a natural order or ranking. They are simply names or labels representing different types of central lines. This makes them fall under the nominal data structure category. Continuous data (choice A) would involve measurements with infinite possible values. Dichotomous data (choice B) would have only two categories. Ordinal data (choice D) would imply a natural ranking or order among the categories, which is not applicable in this context.