A nurse is reviewing the laboratory results of a client who has been taking warfarin for 3 months. Which of the following laboratory results Indicates that the medication has been effective?

Hgb 14 g/dL

WBC count 10,000/mm3

INR 2.0

Platelets 150,000/mm3

Answer and Explanation

The Correct Answer is C

A. Hemoglobin level: The hemoglobin level measures the amount of hemoglobin, the oxygen-carrying protein in red blood cells, in the blood. Warfarin is not directly responsible for increasing or decreasing the hemoglobin level. While warfarin can lead to bleeding complications in some cases, it does not specifically target the hemoglobin level, so it is not a direct indicator of the medication's effectiveness.

B. Platelet count: The platelet count measures the number of platelets in the blood, which are essential for blood clotting. Warfarin does not directly affect platelet production or count. It works by inhibiting the production of certain clotting factors, not by affecting platelets. Monitoring the platelet count is important, but it is not an indicator of warfarin's effectiveness in preventing excessive clotting.

C. Prothrombin time (PT) or activated partial thromboplastin time (aPTT): Prothrombin time (PT) and activated partial thromboplastin time (aPTT) are coagulation tests used to assess different types of anticoagulant medications, such as heparin. Warfarin's effect is measured using the International Normalized Ratio (INR). PT and aPTT are not specific to warfarin therapy and are not used to monitor its effectiveness. The INR is the appropriate laboratory test for assessing the efficacy of warfarin therapy.

D. International Normalized Ratio (INR): This is the correct answer. The International Normalized Ratio (INR) is the laboratory test used to monitor the effectiveness of warfarin therapy. The INR measures the time it takes for the blood to clot and reflects the anticoagulant effect of warfarin. A therapeutic INR within the target range (e.g., INR = 2.0 to 3.0 for most indications) indicates that warfarin has been effective in preventing excessive clotting and reducing the risk of complications associated with blood clots.

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Correct Answer is C

Explanation

Smoking is a known risk factor for the development of aspirin-induced ulcers. It can increase the risk of gastrointestinal bleeding and compromise the integrity of the gastric mucosa. Smoking can also impair the healing process and increase the risk of complications associated with ulcers.

While the other factors mentioned in the options may have their own health implications, smoking is specifically associated with an increased risk of aspirin-induced ulcers. Therefore, the nurse should identify the client's smoking habit as a risk factor for the development of an aspirin-induced ulcer.

A. Hyporeflexia B. Frequent yawning C. Respiratory depression D. Constipation

Correct Answer is A

Explanation

Neonatal abstinence syndrome (NAS) is a group of withdrawal symptoms that occur in newborns who were exposed to drugs, including heroin, in utero. Hyporeflexia, which refers to reduced or diminished reflexes, is one of the key findings in neonates experiencing NAS.

During pregnancy, when the mother uses opioids like heroin, the baby becomes dependent on the drug. After birth, when the drug is no longer available, the baby experiences withdrawal symptoms as the body adjusts to the absence of the drug. Hyporeflexia is a common manifestation of NAS and is observed due to the central nervous system's response to the withdrawal.

Let's go through the other options:

B. Frequent yawning: While yawning can be seen in neonates with NAS, it is not as specific to the condition as hyporeflexia. Yawning can occur for various reasons and may not always be indicative of NAS.

C. Respiratory depression: Respiratory depression can be a severe complication of opioid exposure in utero and can result in life-threatening situations for the neonate. However, it is not specific to NAS. Respiratory depression is more closely associated with opioid overdose in the newborn, which can be a separate concern from NAS.

D. Constipation: Constipation is a possible symptom in neonates experiencing NAS, but it is not as specific as hyporeflexia. Constipation can occur due to various factors and is not unique to NAS.

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A nurse is reviewing the laboratory results of a client who has been taking warfarin for 3 months. Which of the following laboratory results Indicates that the medication has been effective?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is starting to take aspirin 81 mg daily. Which of the following findings should the nurse identify as a risk factor for the client's development of an aspirin-induced ulcer?

Correct Answer is C

Explanation

A nurse is assessing a neonate who was exposed to heroin in utero. Which of me following findings should the nurse identify as an indication that the neonate is experiencing neonatal abstinence syndrome?

Correct Answer is A

Explanation

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