Nokea
Which part of the brain controls breathing?
- A. Medulla
- B. Cerebrum
- C. Cerebellum
- D. Thalamus
Correct Answer: A
Rationale: The medulla oblongata, located in the brainstem, is responsible for controlling essential autonomic functions such as breathing, heart rate, and blood pressure. Specifically, the medulla regulates the rhythm and depth of breathing by sending signals to the respiratory muscles, including the diaphragm and intercostal muscles. In response to changing levels of oxygen and carbon dioxide in the blood, the medulla adjusts the breathing rate to maintain proper oxygenation of the body tissues. Damage to the medulla can result in respiratory failure, highlighting its critical role in controlling breathing.
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Which is an accurate description of a Kasai procedure?
- A. A palliative procedure in which the bile duct is attached to a loop of bowel to assist with bile drainage.
- B. A curative procedure that connects the bile duct to the bowel.
- C. A curative procedure where the bile duct is banded.
- D. A palliative procedure where the bile duct is banded.
Correct Answer: A
Rationale: The Kasai procedure is a palliative surgery for biliary atresia that helps restore bile flow and delays the need for liver transplantation.
The nurse is planning care for a low birth weight newborn. Which is an appropriate nursing intervention to promote adequate oxygenation?
- A. Place in Trendelenburg position periodically.
- B. Suction at least every 2 to 3 hours.
- C. Maintain neutral thermal environment.
- D. Hyperextend neck with nose pointing to ceiling.
Correct Answer: C
Rationale: Maintaining a neutral thermal environment is an appropriate nursing intervention to promote adequate oxygenation in a low birth weight newborn. Newborns, especially those with low birth weight, have limited capacity to regulate their body temperature. Keeping the baby warm helps prevent cold stress, which can lead to increased metabolic demands and oxygen consumption. By maintaining a neutral thermal environment, the newborn's energy can be directed towards growth and development, rather than compensating for temperature fluctuations. This intervention helps optimize oxygenation and overall well-being of the low birth weight newborn. The other options (A, B, D) do not directly address the need for adequate oxygenation in a low birth weight newborn.
Which of the following blood study results would the nurse expect as most likely when caring for the child with iron deficiency anemia?
- A. Increased hemoglobin
- B. Normal hematocrit
- C. Decreased mean corpuscular volume (MCV)
- D. Normal total iron-binding capacity (TIBC)
Correct Answer: C
Rationale: Iron deficiency anemia is characterized by a decreased mean corpuscular volume (MCV) due to the microcytic red blood cells that result from inadequate iron availability for hemoglobin synthesis. This leads to smaller red blood cells, which are reflected in a decreased MCV. Iron deficiency anemia would not typically result in an increased hemoglobin or normal hematocrit since the lack of iron impairs the production of red blood cells. Additionally, the total iron-binding capacity (TIBC) would usually be increased in iron deficiency anemia as the body attempts to compensate for the decreased iron levels by increasing its ability to bind and transport iron. Therefore, the nurse would expect a decreased mean corpuscular volume (MCV) in a child with iron deficiency anemia.
The MOST common type of cerebral palsy is
- A. ataxic cerebral palsy
- B. spastic cerebral palsy
- C. dystonic cerebral palsy
- D. dyskinetic cerebral palsy
Correct Answer: B
Rationale: Spastic cerebral palsy is the most common type.
You are evaluating a 2-year-old boy with multiple bruises. Physical examination is unremarkable apart from multiple bruising areas. Lab investigations including coagulation profile are normal. Of the following, bruises that are LEAST likely suggestive of physical abuse is
- A. bruises over the neck
- B. looped extension cord marks on the body
- C. bruises over bony prominences
- D. bruising of the torso
Correct Answer: C
Rationale: Bruises over bony prominences are common in toddlers due to falls and rough play, whereas bruises in unusual locations like the neck or torso are more suspicious for abuse.