Nokea
Mechanisms of dyspnea in left heart disease include all, except
- A. PVH and decreased lung compliance
- B. Respiratory muscle fatigue
- C. Elevated LV End diastolic pressure leads to decreased antegrade coronary blood flow
- D. Reverse 'Bernheim' effect
Correct Answer: C
Rationale: Elevated LV end-diastolic pressure does not typically lead to decreased antegrade coronary blood flow.
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A client who took a camping vacation two weeks ago in a county with a tropical climate comes to the clinic describing vague symptoms and diarrhea for the past week. Which finding is most important for the nurse report to the healthcare provider?
- A. Weakness and fatigue
- B. Intestinal cramping
- C. Weight loss
- D. Jaundiced sclera
Correct Answer: D
Rationale: Jaundiced sclera indicates possible liver involvement, which could be due to a tropical disease such as hepatitis or leptospirosis.
A child with rheumatic fever begins involuntary, purposeless movements of her limbs. What does the nurse recognize that this indicates?
- A. Seizure activity
- B. Hypoxia
- C. Sydenham’s chorea
- D. Decreasing level of consciousness
Correct Answer: C
Rationale: As the effects of rheumatic fever affect the central nervous system, the child may develop Sydenham’s chorea, manifested by involuntary, purposeless movements of the limbs.
An older adult woman with a long history of chronic obstructive pulmonary disease (COPD) is admitted with progressive shortness of breath and a persistent cough. She is anxious and is complaining of a dry mouth. Which intervention should the nurse implement?
- A. Administer a prescribed sedative
- B. Encourage client to drink water
- C. Apply a high-flow venturi mask
- D. Assist her to an upright position
Correct Answer: D
Rationale: An upright position improves lung expansion and oxygenation, which is crucial for a client with COPD.
Progressive spinal muscular atrophy of infancy presents with:
- A. Severe generalised weakness
- B. Fasciculations in the tongue
- C. Loss of spinothalamic tract function
- D. Spontaneous fibrillation on electromyography
Correct Answer: A
Rationale: Progressive spinal muscular atrophy presents with severe weakness and tongue fasciculations. Spinothalamic tract function is preserved, and electromyography shows fibrillation.
Which of the following statements is true regarding Glasgow coma scale (GCS) in children?
- A. The scale is validated as a prognostic scoring system in children and young infants
- B. Patients with GCS < or = 8 require aggressive management
- C. All patients with GCS < or = 5 should be intubated and mechanically ventilated
- D. It is useful in children to assess the neurological, circulatory and cardiac status
Correct Answer: B
Rationale: Patients with a GCS of 8 or less require aggressive management, as this indicates severe brain injury and potential airway compromise.