A nurse is caring for a client who has an NG tube to suction and is receiving IV fluids to maintain fluid volume balance. Which of the following findings should indicate to the nurse that this therapy is effective?
Decreased NG tube drainage.
Potassium 3.3 mEq/L.
Increased heart rate.
Hematocrit 46%.
The Correct Answer is A
Choice A rationale:
A decrease in NG tube drainage indicates that the client's stomach contents are not being aspirated excessively, which suggests that the IV fluids are effectively maintaining fluid volume balance. This finding is positive because it shows that the client is retaining the fluids they need, and it may also indicate improved gastrointestinal function and decreased risk of dehydration.
Choice B rationale:
The potassium level of 3.3 mEq/L (milliequivalents per liter) is low. The normal range for potassium is typically between 3.5 to 5.0 mEq/L. Hypokalemia (low potassium) can result from various factors and may cause muscle weakness, cardiac arrhythmias, and other complications. It is not a finding that indicates the effectiveness of fluid volume balance therapy.
Choice C rationale:
An increased heart rate may suggest that the client is experiencing fluid volume deficit or other physiological stress. It is not a finding that indicates the effectiveness of fluid volume balance therapy.
Choice D rationale:
A hematocrit level of 46% is within the normal range for adult males (typically around 38.8% to 50%) and indicates the proportion of red blood cells in the blood. While it can provide information about blood viscosity and hydration status, it does not directly indicate the effectiveness of fluid volume balance therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Administering phenytoin IV no faster than 100 mg/min is crucial to prevent adverse effects such as cardiovascular collapse or severe hypotension. Rapid administration of phenytoin can cause cardiac arrhythmias and should be avoided.
Choice B rationale:
Monitoring plasma phenytoin levels to establish the therapeutic range is a necessary action in managing the client's seizure disorder, but it does not pertain to the specific administration of phenytoin via intermittent bolus.
Choice C rationale:
Adding the medication to the existing IV solution is not appropriate for phenytoin administration. Phenytoin should be administered separately and not mixed with other IV solutions to maintain its stability and prevent interactions.
Choice D rationale:
Monitoring the client for hypertension is not directly related to the administration of phenytoin via intermittent bolus. Hypertension is not a common adverse effect of this medication. However, blood pressure should be monitored as part of routine care for any client on antiepileptic therapy.
Correct Answer is B
Explanation
Choice A rationale:
A PT (Prothrombin Time) of 12 seconds is not indicative of the effectiveness of heparin therapy for a pulmonary embolism. PT measures the extrinsic pathway of the coagulation cascade, and it is more relevant to monitor in patients on warfarin therapy.
Choice B rationale:
The aPTT (Activated Partial Thromboplastin Time) of 75 seconds is the correct choice as it reflects the effectiveness of unfractionated heparin therapy. Heparin works by inhibiting clotting factors in the intrinsic pathway, and the aPTT is used to monitor heparin's anticoagulant effect. The normal range for aPTT is typically 25-35 seconds.
Choice C rationale:
An INR (International Normalized Ratio) of 1.1 is not the appropriate parameter to assess the effectiveness of heparin therapy. INR is primarily used to monitor the effectiveness of oral anticoagulants like warfarin, not heparin.
Choice D rationale:
The platelet count of 200,000/mm² is not a suitable parameter to evaluate the effectiveness of heparin therapy. Platelet count is important for assessing the risk of bleeding or clotting disorders but does not directly measure the impact of heparin on clotting factors.
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