Nokea
The tricuspid valve is in closed position corresponding to which of the following curves of central venous pressure:
- A. a' wave
- B. x descent
- C. x' descent
- D. y descent
Correct Answer: B
Rationale: The tricuspid valve is closed during the x descent of the central venous pressure curve.
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Toxoplasma gondii infection in humans causes:
- A. Oral ulcers
- B. Cervical lymphadenopathy
- C. Microcephaly
- D. Chorioretinitis
Correct Answer: D
Rationale: Chorioretinitis is a hallmark of congenital toxoplasmosis, leading to vision impairment.
When planning care for a client newly diagnosed with open angle glaucoma, the nurse identifies a priority nursing diagnosis of, 'visual sensory/perceptual alterations.' This diagnosis is based on which etiology?
- A. Limited eye movement
- B. Decreased peripheral vision
- C. Blurred distance vision
- D. Photosensitivity
Correct Answer: B
Rationale: Open angle glaucoma primarily affects peripheral vision, leading to visual sensory/perceptual alterations.
Which is an important nursing consideration when chest tubes will be removed from a child?
- A. Explain that it is not painful.
- B. Explain that only a Band-Aid will be needed.
- C. Administer analgesics before the procedure.
- D. Expect bright red drainage for several hours after removal.
Correct Answer: C
Rationale: It is appropriate to prepare the child for the removal of chest tubes with analgesics. Short-acting medications can be used that are administered through an existing IV line. A sharp, momentary pain is felt. This should not be misrepresented to the child. A petroleum gauze, air-tight dressing will be needed, but it is not a pain-free procedure. Little or no drainage should be found on removal.
Cardiac catheterization therapeutic in
- A. Infundibular pulmonary stenosis
- B. Mitral regurgitation
- C. Aortic stenosis
- D. Transposition of great vessels
Correct Answer: A
Rationale: Infundibular pulmonary stenosis can be treated therapeutically with cardiac catheterization.
A toddler who has been hospitalized for vomiting due to gastroenteritis is sleeping and difficult to wake up. Assessment reveals vital signs of a regular heart rate of 230 beats per minute, respiratory rate of 30 per minute, BP of 84/52, and capillary refill time of 3 seconds. Which dysrhythmia does the nurse suspect in this child?
- A. Rapid atrial flutter
- B. Supraventricular tachycardia
- C. Sinus bradycardia
- D. Rapid atrial fibrillation
Correct Answer: B
Rationale: Supraventricular tachycardia is characterized by a very rapid heart rate, which can lead to decreased cardiac output and symptoms such as lethargy and difficulty waking, as seen in this toddler.