A nurse is reviewing laboratory data from a client who has pulmonary embolism and is receiving IV heparin. Which of the following findings should the nurse report to the provider?
Platelets 74,000/mm3
White blood cell count 8,000/mm3
Partial thromboplastin time (PTT) 55 seconds
Hematocrit 45%
The Correct Answer is A
A. Platelets 74,000/mm: A platelet count of 74,000/mm³ is significantly lower than the normal range (typically 150,000 to 450,000/mm³). This could indicate heparin-induced thrombocytopenia (HIT), a serious adverse effect of heparin therapy where the immune system forms antibodies against heparin bound to platelet factor 4, leading to a decrease in platelets and increased risk of thrombosis. This is a critical finding and should be reported immediately to the provider for further evaluation and potential adjustment of the treatment plan.
B. White blood cell count 8,000/mm³: This is within the normal range (typically 4,000 to 11,000/mm³) and does not indicate an immediate problem related to heparin therapy or pulmonary embolism management.
C. Partial thromboplastin time (PTT) 55 seconds: While slightly elevated, this PTT is within the therapeutic range for a patient receiving IV heparin (typically 1.5 to 2.5 times the normal control value, or about 45 to 70 seconds). This indicates that the heparin is having the desired anticoagulant effect.
D. Hematocrit 45%: This is within the normal range for adults (typically 38-50% for men and 35-45% for women) and does not indicate an immediate concern related to heparin therapy or pulmonary embolism.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Reduced cardiac output: While liver disease can affect circulation in later stages, abnormal coagulation is a more immediate concern.
B. Abnormal coagulation: The liver plays a vital role in producing proteins essential for blood clotting. Liver damage can impair this function, leading to increased bleeding risk.
C. Electrolyte imbalance: The liver plays a role in some aspects of electrolyte balance, but abnormal coagulation is a more specific and critical complication in early liver damage.
D. Respiratory issues: While liver disease can progress to respiratory complications in severe cases, abnormal coagulation is a more immediate threat.
Correct Answer is B
Explanation
A. The client sprinkles flaxseeds on breakfast food every day. Flaxseeds contain omega-3 fatty acids, which can have antithrombotic effects. However, their impact on INR (International Normalized Ratio), the measure of warfarin's anticoagulant effect, is not well-established. While it's important to monitor the client's dietary intake of foods rich in vitamin K or those with potential antithrombotic effects, such as flaxseeds, this is not the priority finding among the options provided.
B. The client keeps a small supply of vitamin K tablets on hand for emergency use. This is the correct answer. Vitamin K is the antidote for warfarin, and the client should not keep a supply of vitamin K tablets on hand for emergency use. Warfarin's anticoagulant effect is carefully monitored through regular INR checks, and adjustments to the dosage are made accordingly. The presence of vitamin K tablets suggests a potential risk of self-adjusting warfarin dosage, which can lead to fluctuations in INR levels and increase the risk of thromboembolic or bleeding events.
C. The client uses garlic as a daily dietary supplement. Garlic is known to have potential antithrombotic effects and can interact with warfarin, increasing the risk of bleeding. However, its impact on INR levels may vary among individuals. While it's important to consider the use of garlic as a dietary supplement, it is not the priority finding among the options provided.
D. The client consistently eats fish for dinner twice weekly. Fish consumption, particularly those rich in omega-3 fatty acids such as salmon or mackerel, can have antithrombotic effects and may affect INR levels. However, the client's consistent fish consumption is less likely to have a significant impact on warfarin therapy compared to the potential self-administration of vitamin K tablets.
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