Nokea
Clinical manifestations of haemophilia include:
- A. Bleeding following neonatal intramuscular injection
- B. Intracranial bleeding
- C. Gingival bleeding
- D. Menorrhagia
Correct Answer: B
Rationale: Intracranial bleeding is a serious and potentially life-threatening manifestation of hemophilia, particularly in severe cases.
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The following statements are true regarding a screening test:
- A. Sensitivity indicates the proportion of true positives
- B. Specificity indicates the proportion of true negatives
- C. Sensitivity is inversely related to specificity
- D. Prevalence affects predictive value
Correct Answer: D
Rationale: Prevalence affects predictive value
Corneal opacities are seen in:
- A. Marfan's syndrome
- B. Herpes simplex infection
- C. Hurler syndrome
- D. Osteogenesis imperfecta
Correct Answer: C
Rationale: Corneal opacities are a characteristic feature of Hurler syndrome, a type of mucopolysaccharidosis.
Examples of encapsulated organisms are all except:
- A. Pseudomonas
- B. Proteus
- C. Pneumococci
- D. Salmonella
Correct Answer: A
Rationale: The correct answer is A because Pseudomonas is not an encapsulated organism. The other options (b-e) are encapsulated.
The nurse is planning a hypertension-prevention program. What should be the main focus of the nurse when presenting information?
- A. Pharmacological treatment
- B. Surgical interventions available
- C. Patient education
- D. Reduction of aerobic exercise
Correct Answer: C
Rationale: The main focus of a hypertension-prevention program is patient education.
In statistical methodology:
- A. The median and mean are different when the population distribution is skewed
- B. Mode refers to the value that occurs with the highest frequency
- C. The value of 'r' (coefficient of variation) ranges from -1 to +1
- D. Incidence is defined as the number of cases seen in the population at any given period of time
Correct Answer: A
Rationale: The median and mean differ in skewed distributions because the mean is influenced by extreme values, while the median is not.