A nurse is caring for a client who has a pulmonary embolism and is receiving therapy with unfractionated heparin. Which of the following laboratory results indicates that the therapy is effective?

PT 12 seconds.

aPTT 75 seconds.

INR 1.1.

Platelets 200,000/mm².

Answer and Explanation

The Correct Answer is B

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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Correct Answer is C

Explanation

Choice A rationale:

Taking colesevelam on an empty stomach is not necessary. This medication can be taken with food to reduce gastrointestinal side effects.

Choice B rationale:

Increasing fiber in the diet is generally beneficial for bowel health, but it is not specific to the use of colesevelam powder for oral suspension.

Choice C rationale:

This is the correct answer because if the oral suspension of colesevelam is cloudy after mixing, it indicates that the medication may have degraded or is not suitable for consumption. Discarding the cloudy suspension ensures that the client receives the appropriate dose and effectiveness of the medication.

Choice D rationale:

Avoiding grapefruit juice is important for some medications, but it is not relevant to colesevelam. Grapefruit juice can interfere with the metabolism of certain drugs, but it does not have a significant effect on colesevelam.

A. Blood glucose 100 mg/dL. B. Client's temperature 37.6°C (99.7°F). C. Potassium 5.7 mEq/L. D. Weight loss of 0.8 kg/day (1.8 lb/day).

Correct Answer is C

Explanation

Choice A rationale:

A blood glucose level of 100 mg/dL is within the normal range, so there is no need to notify the provider of this finding.

Choice B rationale:

A client's temperature of 37.6°C (99.7°F) is slightly elevated but not considered a critical finding. It may be indicative of an infection or other mild inflammation, but it does not warrant immediate provider notification.

Choice C rationale:

A potassium level of 5.7 mEq/L is above the normal range (3.5-5.0 mEq/L). Hyperkalemia can lead to serious cardiac complications, such as arrhythmias, and requires immediate attention from the provider.

Choice D rationale:

Weight loss of 0.8 kg/day (1.8 lb/day) should be evaluated and monitored, but it is not an immediate concern that warrants urgent provider notification.

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A nurse is caring for a client who has a pulmonary embolism and is receiving therapy with unfractionated heparin. Which of the following laboratory results indicates that the therapy is effective?

Nursing Test Bank

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