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 A
Explanation
Rationale:
A. Serum potassium: Spironolactone is a potassium-sparing diuretic that can cause hyperkalemia. Monitoring serum potassium is essential to detect elevated levels early and prevent cardiac complications.
B. Platelet count: Spironolactone does not significantly affect platelet production or function, so routine monitoring of platelets is not indicated for this medication.
C. Urine ketones: Ketone monitoring is relevant for clients with uncontrolled diabetes or ketosis, but it is not related to spironolactone therapy.
D. Total bilirubin: Bilirubin levels are used to assess liver function, which is not directly affected by spironolactone in most clients, so routine monitoring is not necessary unless the client has underlying hepatic disease.
Correct Answer is D
Explanation
A. Administer fluid bolus immediately when the client arrives to the facility: Rapid fluid boluses are reserved for clients in hypovolemic shock. For burn resuscitation, fluids are calculated and administered according to formulas rather than as a one-time bolus.
B. Administer one-third of the total fluid volume for resuscitation within the first 12 hr: Burn fluid resuscitation formulas, such as the Parkland formula, typically require half of the total calculated fluids to be given within the first 8 hours post-burn, not 12 hours.
C. Calculate fluid volume for resuscitation beginning with client arrival time at the facility: Fluid calculation is based on the time of the burn occurrence, not the arrival time, to ensure accurate resuscitation over the initial 24 hours.
D. Use the total body surface area of the client's burns when calculating fluid volume for resuscitation: The extent of burns, expressed as a percentage of total body surface area (TBSA), is a key factor in calculating fluid needs. Accurate TBSA assessment ensures appropriate fluid resuscitation to maintain perfusion and prevent complications.
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