At about what age does the Babinski sign disappear?
- A. 4 months
- B. 6 months
- C. 1 year
- D. 2 years
Correct Answer: D
Rationale: The Babinski sign is a reflex response in infants where their big toe moves upward and the other toes fan out when the sole of the foot is stroked. This reflex is normally present in infants up to around 2 years of age. By the age of 2, the nervous system has matured, and the Babinski sign disappears as the child's motor pathways develop and the reflex becomes suppressed. After the age of 2, the presence of the Babinski sign can indicate neurological issues, so its absence beyond this age is considered normal.
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In neuroblastoma, metastatic spread can occur via local invasion or distant hematogenous/lymphatic routes. The LEAST common site of metastases in neuroblastoma is
- A. long bone
- B. bone marrow
- C. lung
- D. skin
Correct Answer: D
Rationale: Skin metastases are rare in neuroblastoma compared to bone, bone marrow, and lung involvement.
A patient is admitted who has had severe vomiting for 24 hours. She states that she is exhausted and weak. The results of an admitting ECG show flat T waves and ST segment depression. Choose the most likely potassium (K ) value for this patient.
- A. 4.0mEq/L
- B. 2.0mEq/L
- C. 8.0mEq/L
- D. 2.6mEq/L
Correct Answer: B
Rationale: The patient is displaying signs of hypokalemia (low potassium levels) due to severe vomiting. Symptoms of hypokalemia can include weakness, fatigue, and ECG changes such as flat T waves and ST segment depression. The potassium level that is most likely associated with these symptoms is 2.0mEq/L. Severe vomiting can lead to significant loss of potassium from the body, causing these abnormalities. It is important to address and correct the potassium imbalance to prevent further complications.
Place the following four nursing actions for the new laryngectomee in correct order of priority? i.Assist with ambulation ii.Set up a visit from a well-adjusted laryngectomee iii.Maintain a patent airway iv.Control postoperative pain
- A. 1, 2, 3, 4
- B. 3, 4, 1, 2
- C. 2, 3, 4, 1
- D. 4, 1, 2, 3
Correct Answer: C
Rationale: 1. Setting up a visit from a well-adjusted laryngectomee should be the first priority. This action will provide emotional support and guidance from someone who has gone through a similar experience, which can be extremely beneficial for the new laryngectomee in adjusting to their new situation and learning coping strategies.
It is a serious condition in which the bone marrow does not produce enough new blood cells. It may be passed down from the parents or develop sometime during childhood:
- A. Iron deficiency anemia
- B. Sickle cell disease
- C. Aplastic anemia
- D. Thalassemia
Correct Answer: C
Rationale: Aplastic anemia is a serious condition characterized by the bone marrow's failure to produce enough blood cells - red blood cells, white blood cells, and platelets. This condition may be inherited or acquired later in life, including during childhood. It results in a deficiency of all types of blood cells, leading to symptoms like fatigue, weakness, frequent infections, and easy bruising or bleeding. Iron deficiency anemia, sickle cell disease, thalassemia, hemophilia, and idiopathic thrombocytopenic purpura are different blood disorders with distinct causes and symptoms, which do not match the description provided in the question.
The first permanent tooth to erupt is
- A. central incisor at 6 years
- B. molar at 6 years
- C. premolar lower canine at 6-7 years
- D. upper canine at 6-7 years
Correct Answer: B
Rationale: The first molar typically erupts at 6 years.