A nurse in a provider’s office performs a fecal occult blood test with a positive result on a client.
Which of the following clients may have a false positive result?
A. A client who has a venous stasis ulcer.
A client who has peripheral hematomas.
A client who underwent a barium swallow study.
A client who takes an iron supplement.
The Correct Answer is D
Correct answer: C
A. A client who has a venous stasis ulcer: This is less likely to cause a false positive result. While ulcers can bleed, the fecal occult blood test is designed to detect small amounts of blood in the stool, not necessarily blood from other sources like venous stasis ulcers.
B. A client who has peripheral hematomas: Peripheral hematomas are typically not related to the fecal occult blood test. They generally wouldn’t affect the results unless there was significant bleeding or if the hematomas were a result of an underlying bleeding disorder.
C. A client who underwent a barium swallow study: This is the most likely to cause a false positive result. Barium used in the study can sometimes appear as a false positive on the test due to its interference with the chemical reactions used to detect blood.
D. A client who takes an iron supplement: Iron supplements can actually cause a false negative result rather than a false positive because they may darken the stool and mask the presence of blood.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The client’s oxygen saturation is 88% on 2 L/min of oxygen via nasal cannula, which is below the normal range of 95% to 100%.
This could indicate that the client is not receiving enough oxygen or that the pulse oximeter is not working properly.
The nurse should first check the sensor probe for any problems, such as poor attachment, nail polish, cold extremities, or motion artifact.
Repositioning the sensor probe may improve the accuracy of the reading and help the nurse determine the next course of action.
Choice B. Apply a cooling blanket to the client is wrong because a cooling blanket is used to lower the body temperature of a client with fever or hyperthermia.
It has no effect on the oxygen saturation level.
Choice C. Place the client in a side-lying position is wrong because a side-lying position may not improve the oxygenation of the client.
A more appropriate position would be a high Fowler’s position, which allows for maximum lung expansion and gas exchange.
Choice D. Ambulate the client is wrong because ambulating the client may worsen the oxygen saturation level if the client has a respiratory condition that causes hypoxemia.
The nurse should assess the client’s respiratory status and oxygen therapy before ambulating the client.
Correct Answer is D
Explanation
It can also increase the risk of denture stomatitis and pneumonia.
Dentures should be removed overnight and soaked in a denture-cleansing solution.
Choice A is wrong because rinsing dentures after meals can help remove food debris and prevent plaque buildup.
Choice B is wrong because soaking dentures in water after removal can prevent them from drying out and losing their shape.
However, water alone is not enough to disinfect dentures, so a denturecleansing solution should also be used.
Choice C is wrong because applying an adhesive to seal dentures in place can improve the fit and comfort of dentures.
However, adhesive should not be used as a substitute for poorly fitting dentures, and any excess adhesive should be removed by brushing.
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