A 52-year-old female presents to the emergency room with swelling over her right calf for the past 3 days. Her right calf is warm, erythematous, and tender to palpation. A duplex is performed and shows a deep vein thrombosis (DVT). This is her first DVT. She is started on warfarin and told that she must continue it for the next 3 months. What effect does warfarin have on the coagulation panel?Question 6Answera.Increases bleeding timeb.Increases prothrombin timec.Decreases partial thromboplastin timed.Increases partial thromboplastin timee.Decreases prothrombin time

A nurse is caring for a 39-year-old female client on a medical-surgical floor. The interdisciplinary team has determined that the client is at a risk for the development of a pulmonary embolism and has therefore implemented prophylactic measures. The client is prescribed Warfarin therapy for its anticoagulant effects. Based on the nurse's understanding of the drug, the nurse confirms that the drug has reached a therapeutic level when which of the following coagulation results are obtained?The client's baseline coagulation studies:Activated partial thromboplastin time (aPTT): 30 secondsInternational normalized ratio (INR): 1.5Prothrombin time (PT): 10 secondsCassidy RhodyID: 112703Question 6Select one:1.PT 7 seconds, INR 2.52.PT 19 seconds, INR 2.03.PT 25 seconds, INR 2.14.aPTT 35 seconds, INR 3.0

Choose the single CORRECT answer or statement. A 55-year-old woman has had discomfort and swelling of her left leg for the past week following a long international air flight. Investigation reveals thrombosis of deep veins in her left leg. Which of the following mechanisms is most likely to have contributed to her condition?Group of answer choicesImmobilisationHypertensionTurbulent blood flowEmbolism

History A 54-year-old female patient presented to the emergency department with a 6-h history of worsening shortness of breath and sharp, right-sided chest pain that was worse on deep inspi- ration. She denied experiencing palpitations, did not complain of nausea, and was not feeling lightheaded. She had a history of recurrent deep vein thromboses for which she was on lifelong warfarin. Her INR had been stable at 3.0–3.5 with 5 mg warfarin once daily for more than a year and had last been checked 4 weeks ago. Her only other past medical history was a recent diagnosis of active pulmonary tuberculosis, for which the patient had been prescribed isoniazid (along- side pyridoxine), rifampicin, pyrazinamide and ethambutol. The patient worked as a primary school teacher and was usually fit and well. She had never smoked and denied any regular alcohol intake. There was no relevant family history. Examination The patient appeared moderately dyspnoeic on exertion but was able to speak comfortably at rest. Her pulse rate was 110 beats per minute and regular and her blood pressure was stable at 130/84 mmHg. Her respiratory rate was 22 breaths per minute. She was afebrile. I have read the History *YesNoResults A CT pulmonary angiogram scan showed large volume, bilateral pulmonary emboli but no evidence of associated right heart strain. *I have read the resultNo I didn't read itOther:The reason for developing pulmonary embolus at this point of time is due to drug interaction at the level of*1 pointa. absorptionb. Distributionc. metabolismd. elimination

Select the correct statements. (Note that there may be more than one correct statement.)Group of answer choicesHeparin and warfarin effectively inhibit platelet aggregation.Heparin cannot be absorbed from the gastrointestinal tract and therefore it is an injectable anticoagulant.Thrombolytic substances dissolve existing blood clots but cannot prevent their formation.One of the reasons Warfarin should not be administered in pregnancy is that it crosses the placenta and therefore may cause cerebral haemorrhage in the fetus during delivery.

Which of the following is true of disseminated intravascular coagulation?It can result in the formation of blood clots as well as bleedingIt is an inherited diseaseIt is contagious and can be passed from person to personIt is never seen in association with an underlying conditionAll of the answers are true of this condition