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The couple with the lowest risk of having a child with sickle cell disease is the one in which the:
- A. Father is HbS and mother is HbS
- B. Father is HbAS and the mother is
- C. Father is HbS and mother is HbAS HbAS
- D. Father is HbA and the mother is HbS
Correct Answer: D
Rationale: Sickle cell disease is an autosomal recessive genetic disorder caused by a mutation in the HBB gene, resulting in the production of abnormal hemoglobin called HbS. In order to have a child with sickle cell disease, both parents must be carriers of the HbS gene.
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The nurse knows that Parkinson's disease a progressive neurologic disorder is characterized by:
- A. Bradykinesia
- B. Tremor
- C. Muscle rigidity
- D. All of the above
Correct Answer: D
Rationale: Parkinson's disease is a progressive neurologic disorder that is characterized by a triad of symptoms known as the classic Parkinsonian triad. These symptoms include bradykinesia (slowness of movement), tremor (involuntary shaking), and muscle rigidity (stiffness of the muscles). Therefore, all of the given choices are correct in describing the characteristics of Parkinson's disease.
The parents of a 4-month-old infant tell the nurse that they are getting a microwave oven and will be able to heat the baby's formula faster. What should the nurse recommend?
- A. Never heat a bottle in a microwave oven.
- B. Heat only 10 ounces or more.
- C. Always leave bottle top uncovered to allow heat to escape.
- D. Shake bottle vigorously for at least 30 seconds after heating.
Correct Answer: A
Rationale: The nurse should recommend never heating a bottle in a microwave oven. Microwaves do not heat liquids evenly, and there is a risk of creating hot spots in the formula, which can burn the baby's mouth and throat. It is safer to heat the formula by placing the bottle in warm water or using a bottle warmer to ensure uniform heating throughout.
A 10 years old girl presented with fever and bruises for last 2 weeks. On examination she is pale; however there is no evidence of lymphadenopathy or hepatosplenomegaly. Her Hb is 6g/dl, TLC is 2700 and platelets are 90000. The most appropriate investigation to clinch the diagnosis is:
- A. Bone marrow aspiration
- B. Retics count
- C. Bleeding time
- D. PT and APTT
Correct Answer: A
Rationale: Bone marrow aspiration is essential to rule out conditions like aplastic anemia or leukemia, which could explain the symptoms and lab findings.
A 15-month-old toddler was able to do all the following EXCEPT
- A. walks alone
- B. makes tower of 3 cubes
- C. inserts raisin in a bottle
- D. responds to his/her name
Correct Answer: D
Rationale: Responding to name usually occurs earlier, around 6-9 months.
Bryce is a child diagnosed with coarctation of aorta. While assessing him, Nurse Zach would expect to find which of the following?
- A. Squatting posture
- B. Absent or diminished femoral pulses
- C. Severe cyanosis at birth
- D. Cyanotic ("tet") episodes 46
Correct Answer: B
Rationale: Coarctation of the aorta is a congenital heart defect where there is a narrowing of the aorta, usually near the insertion of the ductus arteriosus. This narrowing can lead to decreased blood flow to the lower body. A common finding in a child with coarctation of the aorta is absent or diminished femoral pulses due to the obstruction of blood flow through the narrowed aorta. Other symptoms may include high blood pressure in the arms, weak lower body pulses, and heart murmur. Squatting posture, severe cyanosis at birth, and cyanotic ("tet") episodes are not typically associated with coarctation of the aorta.