Nokea
The MOST common cause of sudden death in competitive athletes is
- A. aortic stenosis
- B. hypertrophic cardiomyopathy
- C. coronary artery abnormalities
- D. myocarditis
Correct Answer: B
Rationale: Hypertrophic cardiomyopathy is the leading cause of sudden death in competitive athletes.
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The wife of a client with Parkinson's disease expresses concern because her husband has lost so much weight. Which teaching is best for the nurse to provide?
- A. Invite friends over regularly to share in meal times
- B. Encourage the client to drink clear liquids between meals
- C. Coach the client to make an intentional effort to swallow
- D. Talk to the healthcare provider about prescribing an appetite stimulant
Correct Answer: A
Rationale: Social interaction during meals can improve appetite and intake in clients with Parkinson's disease.
The following are potent vasoconstrictors:
- A. Renin
- B. Angiotensin I
- C. Nitric oxide
- D. PGI2
Correct Answer: A
Rationale: Renin: Renin is a precursor enzyme in the RAAS that helps in converting angiotensinogen into angiotensin I, a potent vasoconstrictor.
Regarding the genetics of CF:
- A. The commonest mutation in Caucasians is the ~F-580
- B. The affected protein is a transmembrane Na channel
- C. Accurate prenatal diagnosis is possible in all cases
- D. There are less than 10 mutations causing disease
Correct Answer: B
Rationale: the affected protein in cystic fibrosis (CF) is the cystic fibrosis transmembrane conductance regulator (CFTR), which is a chloride channel, not a sodium channel. The other options are incorrect: (a) The commonest mutation in Caucasians is ΔF508, not ~F-580. (b) Parents of an affected child are typically carriers and do not show symptoms. (c) Prenatal diagnosis is not possible in all cases due to the vast number of mutations. (d) There are over 2000 known mutations causing CF.
The nurse is providing preoperative education for a Jewish client scheduled to receive a xenograft graft to promote burn healing. Which information should the nurse provide this client?
- A. Grafting increases the risk for bacterial infections
- B. The xenograft is taken from nonhuman sources
- C. Grafts are later removed by a debriding procedure
- D. As the burn heals, the graft permanently attaches
Correct Answer: B
Rationale: This information is crucial for the client to understand the nature of the graft and its source.
A VII nerve injury at the exit from the stylomastoid foramen would explain all except:
- A. Loss of sensation over the vallecula
- B. Loss of taste over the anterior third of the tongue
- C. Increased responsiveness to loud noises
- D. Inability to open the ipsilateral eye
Correct Answer: D
Rationale: The correct answer is D because the facial nerve (VII) does not control eye opening; this is controlled by the oculomotor nerve (III). The other options (a, b, c, e) are consistent with a VII nerve injury.