The nurse is explaining the difference between active and passive immunity to the student nurse. Which statement accurately describes a characteristic of the process of immunity?
Active immunity is produced when the immunoglobulins of one person are transferred to another.
Passive Immunity can be obtained by injection of exogenous Immunoglobulins.
Active immunity can be transferred from mothers to infants via colostrum or the placenta.
Passive immunity is acquired when a person's own immune system generates the immune response.
The Correct Answer is B
A. Active immunity is produced when the immunoglobulins of one person are transferred to another: This describes passive immunity, not active immunity. Active immunity occurs when an individual’s own immune system is stimulated to produce antibodies and memory cells in response to an antigen or vaccine.
B. Passive immunity can be obtained by injection of exogenous immunoglobulins: Passive immunity involves the direct transfer of antibodies from another source, such as pooled immunoglobulin injections, maternal antibodies via placenta, or breast milk. It provides immediate but temporary protection without generating memory cells.
C. Active immunity can be transferred from mothers to infants via colostrum or the placenta: Maternal antibody transfer to the fetus or newborn is a form of passive immunity, as the infant receives ready-made antibodies rather than producing them independently.
D. Passive immunity is acquired when a person's own immune system generates the immune response: This describes active immunity, not passive. Passive immunity bypasses the individual’s immune system, providing immediate defense without stimulating long-term adaptive immunity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. The child: The primary focus of the physical examination is the child’s current health status, including assessment of all body systems. The examination aims to identify any deviations from normal growth, development, or function, and to correlate findings with the history provided.
B. The parents: While parents provide essential information regarding the child’s health, behaviors, and history, they are not the focus of the physical examination. Their role is to assist with history-taking and contextual information.
C. Chief complaint: The chief complaint guides the assessment and helps prioritize certain systems, but a comprehensive physical examination should extend beyond the presenting problem to evaluate overall health and detect any additional issues.
D. Developmental age: Assessing developmental age is part of the examination to compare expected growth and milestones with chronological age, but it is one component rather than the central focus, which remains the child’s overall physical condition.
Correct Answer is C
Explanation
A. Auscultation: Listening to bowel sounds is performed before palpation or percussion to avoid stimulating or altering gut activity. This provides an accurate assessment of intestinal motility and frequency of bowel sounds.
B. Percussion: Percussion helps assess organ size, fluid, or gas in the abdomen. It is performed after auscultation because tapping can change bowel sounds, potentially interfering with an accurate assessment.
C. Palpation: Palpation is performed last to avoid disturbing the bowel or causing discomfort before auscultation and percussion. Gentle palpation assesses tenderness, masses, and organ size once other noninvasive techniques have been completed.
D. Inspection: Inspection is performed first to evaluate contour, symmetry, skin condition, and visible movements. It does not interfere with subsequent assessment techniques.
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