Nokea
Complement system:
- A. Is activated by bacterial endotoxins by the classical pathway
- B. Reduced C3 and C4 are usual findings in acute glomerulonephritis
- C. Hereditary angioneurotic oedema is caused by deficiency of one of the components of the classical pathway of the system
- D. Is part of humoral immunity
Correct Answer: D
Rationale: The complement system is a key component of humoral immunity, playing a role in the immune response to pathogens.
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A client with chronic kidney disease (CKD) arrives at the clinic reporting shortness of breath on exertion and extreme weakness. Vital signs are temperature 100.4°F (38°C), heart rate 110 beats/minute, respirations 28 breaths/minute, and blood pressure 175/98 mmHg. The client usually receives dialysis three times a week but missed the last treatment. STAT blood specimens are sent to the laboratory for analysis. Which laboratory results should the nurse report to the healthcare provider immediately?
- A. Potassium 6.5 mEq/L (mmol/L)
- B. Potassium 6 mEq/L (mmol/L)
- C. Potassium 0.5 mEq/L (mmol/L)
- D. Potassium 1.5 mEq/L (mmol/L)
Correct Answer: A
Rationale: Elevated potassium levels in CKD clients can lead to life-threatening arrhythmias, so this result needs immediate intervention.
Childhood schizophrenia is suggested by:
- A. Disturbance in movement patterns
- B. Persistent thumb sucking
- C. Hallucinations
- D. Infantile autism
Correct Answer: C
Rationale: Hallucinations are a key feature of childhood schizophrenia. Movement disturbances and thumb sucking are nonspecific, and infantile autism is a separate condition.
A nurse assesses a client after administering a prescribed beta blocker. Which assessment should the nurse expect to find?
- A. Blood pressure increased from 98/42 mm Hg to 132/60 mm Hg
- B. The respiratory rate decreased from 25 breaths/min to 14 breaths/min
- C. Pulse decreased from 100 beats/min to 80 beats/min
- D. Oxygen saturation increased from 88% to 96%
Correct Answer: D
Rationale: Beta blockers reduce heart rate and blood pressure. A decrease in pulse rate from 100 beats/min to 80 beats/min is consistent with the expected pharmacological effect of a beta blocker.
Growth hormone secretion is raised by:
- A. Sleep
- B. Stress
- C. IGF-1
- D. Somatostatin
Correct Answer: A
Rationale: Sleep
Initial tests in a 2-year-old child with failure to thrive include:
- A. Thyroid function tests
- B. Sweat test
- C. Urine culture
- D. Colonoscopy
Correct Answer: B
Rationale: a sweat test is crucial for diagnosing cystic fibrosis, a common cause of failure to thrive in children. The other tests (a-d) are less specific and not typically first-line for this presentation.