A nurse is assessing a client who received a Mantoux skin test 72 hr ago for tuberculosis screening. Which of the following findings indicates a positive test result?
A blister-like area
A cool, blanched area
An elevated, hardened area
An area of ecchymosis
The Correct Answer is C
Rationale:
A. A blister-like area: Blistering is not the expected reaction used to interpret a Mantoux test. The result is based on the presence and size of induration, not the formation of blisters.
B. A cool, blanched area: Coolness and blanching are not indicators of a positive test. These findings may reflect poor circulation or local skin reaction unrelated to tuberculosis screening.
C. An elevated, hardened area: Induration (elevated, firm area) at the injection site, measured in millimeters, is the basis for determining a positive result. The size threshold for positivity depends on the client’s risk factors for tuberculosis.
D. An area of ecchymosis: Bruising at the site is a local skin reaction that can occur after any injection and is unrelated to the diagnostic criteria for a positive Mantoux test.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Rationale:
A. Discuss the client's preferences for determining a repositioning schedule: While involving the client in care planning is important, the schedule for repositioning is primarily determined by clinical needs to prevent complications such as pressure injuries, not solely by preference.
B. Evaluate the client's ability to help with repositioning: Assessing the client’s strength, mobility, and coordination after a stroke determines the level of assistance and equipment required. This ensures safety for both the client and the nurse during repositioning.
C. Raise the side rails of the client’s bed during repositioning: Side rails can create entrapment hazards if used incorrectly and should not be relied upon during repositioning. Their purpose is more for safety positioning after the move, not as a primary tool during the maneuver.
D. Reposition the client with the assistive devices: Assistive devices should be used if needed, but this step follows an assessment of the client’s capabilities. Selecting equipment without first evaluating the client may lead to unnecessary interventions.
Correct Answer is A
Explanation
Rationale:
A. Increased creatinine: Chronic kidney disease reduces the kidneys’ ability to filter waste products effectively, causing creatinine to accumulate in the blood. Elevated creatinine is a key indicator of declining renal function and is expected in this condition.
B. Increased calcium: Clients with chronic kidney disease often have decreased calcium levels due to impaired vitamin D activation and phosphate retention. Increased calcium would be unusual unless the client is receiving supplementation.
C. Increased bicarbonate: Metabolic acidosis is common in chronic kidney disease because the kidneys cannot adequately excrete hydrogen ions or reabsorb bicarbonate. This typically results in decreased, not increased, bicarbonate levels in the blood.
D. Increased hemoglobin: Anemia frequently occurs in chronic kidney disease due to reduced erythropoietin production by the kidneys. This leads to lower hemoglobin levels, so an increase would not be expected unless treated with erythropoiesis-stimulating agents.
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