A nurse is assessing a client with chronic liver failure who tells the nurse he is experiencing spontaneous episodes of bleeding and has noted increased areas of bruising on his arms. The nurse suspects the client has a deficiency in which of the following vitamins?
Thiamine
Vitamin C
Vitamin K
Folic acid
The Correct Answer is C
A. Thiamine deficiency is often associated with neurological symptoms, such as Wernicke-Korsakoff syndrome, rather than spontaneous bleeding or bruising. Thiamine does not directly impact the coagulation process.
B. Vitamin C deficiency can lead to scurvy, which includes symptoms such as bleeding gums and poor wound healing. However, it is not typically associated with the spontaneous bleeding and bruising seen in chronic liver failure.
C. Vitamin K is essential for the synthesis of clotting factors produced by the liver. In chronic liver failure, the liver's ability to produce these factors is impaired, leading to an increased risk of bleeding and bruising due to vitamin K deficiency.
D. Folic acid deficiency is more commonly linked to anemia and certain neurological issues, but it does not cause spontaneous bleeding or bruising. It does not directly affect coagulation factors as vitamin K does.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Distributive shock is associated with decreased MAP, not increased.
B. Decreased venous return occurs in distributive shock due to the pooling of blood in the periphery, leading to reduced preload and decreased cardiac output.
C. Distributive shock typically results in increased heart rate as the body attempts to compensate for decreased blood pressure and venous return.
D. Cardiac output is generally decreased in distributive shock due to reduced venous return and impaired blood flow.
Correct Answer is C
Explanation
A. The treatment for vancomycin-resistant enterococcus (VRE) in a previous admission is not directly related to the development of CLABSI in the current situation. The infection is more likely caused by improper handling or maintenance of the central line.
B. Drawing blood cultures from the central line, while not ideal, is not the most likely cause of CLABSI. Proper technique can mitigate the risk of introducing infection during this procedure.
C. Changing the central line dressing using clean technique instead of sterile technique increases the risk of introducing pathogens to the central line site, leading to a central line-associated bloodstream infection (CLABSI).
D. Receiving antibiotics and intravenous fluids through the same line does not typically cause CLABSI if the line is properly maintained and sterile techniques are observed during administration.
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