A nurse is caring for a client who comes to the clinic to be tested for tuberculosis (TB) after a close family contact tests positive. Which of the following measures should the nurse anticipate preparing for this client?
Bacille Calmette-Guérin (bCG) vaccine
Chest x-ray
Sputum culture for acid fast bacillus (AFB)
Tuberculin skin test
The Correct Answer is D
A. The BCG vaccine is a vaccine used to prevent tuberculosis (TB) disease. However, its effectiveness varies widely and is primarily used in countries with a high prevalence of TB. Therefore, administering the BCG vaccine is not typically part of the evaluation process for TB exposure in a client.
B. A chest x-ray is commonly used to evaluate for active pulmonary TB disease. It can identify characteristic findings such as infiltrates, cavitations, or nodular lesions in the lungs that suggest TB infection. A chest x- ray is often performed as part of the initial evaluation for TB after exposure or to assess for active disease.
C. Sputum culture for AFB is a definitive diagnostic test for tuberculosis. It involves collecting sputum samples and culturing them in a laboratory to detect the presence of Mycobacterium tuberculosis, the bacterium that causes TB.
D. The tuberculin skin test (TST), also known as the Mantoux test, involves injecting a small amount of purified protein derivative (PPD) into the skin of the forearm. After 48-72 hours, a healthcare provider assesses the size of the induration (swelling) at the injection site. A positive TST indicates exposure to TB but does not differentiate between latent TB infection (LTBI) and active TB disease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Hematocrit measures the percentage of red blood cells in the blood. In fluid volume deficit, there is hemoconcentration due to decreased fluid volume, resulting in an increase in hematocrit rather than a decrease. Therefore, a decreased hematocrit would not be an expected finding in fluid volume deficit.
B. Urine ketones are typically elevated in conditions where there is increased fat metabolism, such as in diabetic ketoacidosis or starvation. They are not directly related to fluid volume deficit and would not be an expected finding.
C. Urine specific gravity measures the concentration of solutes in the urine, indicating the kidney's ability to concentrate or dilute urine. In fluid volume deficit, the body conserves water, leading to increased urine concentration and higher urine specific gravity. Therefore, increased urine specific gravity is an expected finding in fluid volume deficit.
D. BUN is a measure of kidney function and protein metabolism. In fluid volume deficit, there is hemoconcentration due to decreased fluid volume, which can lead to an increase in BUN rather than a decrease. A decreased BUN would not typically be an expected finding in fluid volume deficit.
Correct Answer is A
Explanation
A. This temperature is slightly elevated (normal range is typically around 36.5-37.5°C or 97.7-99.5°F). While a mild temperature elevation could indicate infection or other underlying issues, it may not be immediately critical unless accompanied by other symptoms such as chills, increased heart rate, or signs of respiratory distress.
B. Hematocrit measures the proportion of red blood cells in the blood. A hematocrit of 45% is within the normal range for adults. However, changes in hematocrit levels over time can indicate fluid balance issues
or nutritional status, which are important to monitor but may not be an acute priority unless significantly abnormal.
C. A respiratory rate of 12 breaths per minute is within the normal range for adults. However, it's essential to consider if this rate is stable or if there are signs of respiratory distress such as increased effort or decreased oxygen saturation. Respiratory status should always be closely monitored, but a normal rate alone is not a priority concern.
D. Urine specific gravity measures the concentration of urine and can indicate hydration status. A specific gravity of 1.015 is within the normal range for urine concentration. However, changes in urine output or specific gravity can provide insights into fluid balance and renal function over time.
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