Nokea
Mitochondrial DNA
- A. Has its own genome
- B. Is responsible for some forms of myopathies
- C. Can transmit diseases from parents to children
- D. Is present in neurons
Correct Answer: B
Rationale: Is responsible for some forms of myopathies
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All of the following are true regarding transient neonatal pustular melanosis, except
- A. Increased melanization of epidermal cells is characteristic
- B. Active phase shows intracorneal or subcorneal pustules filled with eosinophils
- C. Pustular phase rarely lasts more than 2-3 days
- D. Lesions of pustular melanosis do not contain bacteria
Correct Answer: B
Rationale: The active phase of transient neonatal pustular melanosis shows pustules filled with neutrophils, not eosinophils.
The nurse reports that a client is at risk for a brain attack (stroke) based on which assessment finding?
- A. Nuchal rigidity
- B. Carotid bruit
- C. Jugular vein distention
- D. Palpable cervical lymph node
Correct Answer: B
Rationale: A carotid bruit indicates turbulent blood flow, which is a risk factor for stroke.
Recognised features of constrictive pericarditis are:
- A. Increased fatiguability
- B. Precordial pain
- C. Abdominal distension
- D. Parasternal heave
Correct Answer: C
Rationale: Abdominal distension is a recognized feature of constrictive pericarditis due to impaired venous return and hepatic congestion.
A nurse cares for a client who is prescribed magnetic resonance imaging (MRI) of the heart. The client’s health history includes a previous myocardial infarction and pacemaker implantation. Which action should the nurse take?
- A. Schedule an electrocardiogram just before the MRI.
- B. Notify the healthcare provider before scheduling the MRI.
- C. Call the physician and request a laboratory draw for cardiac enzymes.
- D. Instruct the client to increase fluid intake the day before the MRI.
Correct Answer: B
Rationale: Clients with pacemakers are generally not candidates for MRI due to the risk of device malfunction or tissue damage. The healthcare provider must be notified to determine the best course of action.
Chief organ systems affected in acute graft-versus-host reaction are:
- A. Skin
- B. Renal system
- C. Gut
- D. CNS
Correct Answer: A
Rationale: The skin is one of the primary organ systems affected in acute graft-versus-host disease. The renal system, gut, and CNS can also be affected, but the skin is the most commonly involved.