CCRN EXAM QUESTIONS AND ANSWERS, Exams of Nursing

Download CCRN EXAM QUESTIONS AND ANSWERS and more Exams Nursing in PDF only on Docsity! CCRN EXAM QUESTIONS AND ANSWERS A 56 yr-old male is admitted to the ICU with a blood pressure of 225/135 and complains of a headache and nausea. He reports he ran out of blood pressure meds three days ago, but also appears to be confused to the date and situation. What is the most appropriate treatment approach? - Answers -Rapidly lower the diastolic pressure to 100 with IV antihypertensive meds, then continue to gradually reduce the diastolic pressure to 85 with oral antihypertensive meds. The maximum initial decrease should be no more than 25% reduction from initial presenting value. Reducing the blood pressure too quickly can lead to cerebral edema or renal failure. A patient has sepsis, receives Lactated ringers 500ml IV bolus. Which finding indicate that this intervention is having it's intended effect? - Answers -ScvO2 of 72% Early goal directed therapy for sepsis includes early fluid resuscitation at 30 ml/kg to maintain a CVP of 8-12 or 12-15 if mechanically ventilated, MAP greater than 65, ScvO2 greater than 70%, and urine output greater than 0.5 kg/hr 72 male patient in ICU for 6 days on the ventilator for treatment of a COPD exacerbation. He has been receiving VTE prophylaxis and subcutaneous Heparin since admission. Today his platelet count decreased significantly to 43,000 and was found to have new DVT on his right upper extremity. What do you suspect is the most likely cause of these findings? - Answers -HIT The hallmark sign of HIT is a significant decrease in platelet count over a 24 hours period (>50%) within 5-10 days of administering Heparin. The other hallmark sign is a new development of DVT despite being on VTE prophylaxis. TRALI: - Answers -is a complication from a blood transfusion reaction, which causes acute lung injury typically within 6 hours of a blood transfusion. 2 Hallmark signs of HIT: - Answers -Decrease in platelet count over a 24 hr period. New development of DVT despite being on VTE prophylaxis. Values in Early compensated Hypovolemic shock? - Answers -CO 4.0 L/min, HR 135, SV 65, SVR 1700, MAP 65 In hypovolemic states, circulating volume is depleted therefore preload and contractility are decreased which leads to a decrease in SV and CO. HR and SV increase as compensatory measure to preserve CO, MAP and cerebral perfusion. Post-renal failure values: - Answers -Urine output < 200; urine sodium 30; BUN: Creatinine ratio 15:1; urine specific gravity 1.010 BUN: Creatinine ratio is 15:1, but both the BUN & creatinine are elevated. Urine sodium is typically 1-40 mEq/L. What to do in the event of HIT: - Answers -Stop Heparin and administer an alternative direct thrombin inhibitor. Warfarin is contraindicated in HIT? T/F - Answers -True - there is also no evidence that shows protamine, corticosteroids, and benadryl are effective treatments for HIT Patients with right ventricular infarctions become preload dependent. Meds that decrease preload should be avoided - which meds are these? - Answers -Morphine, Nitro, Beta blockers and diuretics. Polymorphic ventricular tachycardia aka Torsades is treated by? - Answers -Magnesium Myocardial contusions generally impact which parts of the heart? and what would the values be? - Answers -Atria & right ventricle because of the position of the heart in the chest. PAOP 6, PA Pressure 40/24, RA Pressure 16 Neurogenic shock signs? - Answers -CVP: 3, CI: 2.5, SVR: 650, SBP: 88 Neuro shock is associated with a loss of sympathetic tone causing extensive peripheral vasodilation. Clinical signs and symptoms include hypotension, a low SVR, low CVP and low normal CI What parameters are consistent with Pulsus Paradoxes? - Answers -Decrease in SBP>10 during inspiration. Before administering rtPA what must happen? - Answers -Lower the BP to at least 185/110. An elevated BP prior to rtPA can cause hemorrhage. Ibutilide can cause what? - Answers -Torsades A person with disecting AAA would receive what drug? - Answers -PRN IV narcotic analgesia - BP management is a priority in the care of a patient with a dissecting AAA. Pain is the primary driver of HTN. Autonomic hyperreflexia is what? - Answers -This disorder is seen with spinal injuries occurring above the T6 spine. Cause of autonomic hyperreflexia? - Answers -Bladder obstruction, constipation, pressure ulcers, and pain. Usually when the noxious stimulus is identified and removed, A sudden increase in left atrial diastolic pressure will result in? - Answers -Mitral regurgitation Late stages of shock results in what lab values? - Answers -Increased Potassium Decreased Bicarbonate Increased Lactic acid Juxtaglomerular cells secrete what? - Answers -Renin in response to reduced glomerular filtration pressure. Secondary adrenal insufficiency is caused by: - Answers -Long term steroid use, additional stress can overwhelm the hypothalamic -pitutary-adrenal system. Neosynephrine stimulates what? Side effects would include: - Answers -alpha receptors - causes vasoconstriction, resulting in increase BP Reflexive bradycardia Heptojugular Reflex is suggestive of which following condition? - Answers -Right sided heart failure Fever is associated with what? - Answers -Worse neuro outcomes. This is secondary to the increase in cerebral metabolism and oxygen consumption Low volume ventilation, less than 10 mL/kg to minimize what? - Answers - Pneumothorax - over inflation can cause volutrauma, which can lead to a spontaneous pneumothorax. Decreased right atrial pressure (RAP/CVP) could be caused by? - Answers -Sepsis High pressure alarm on ventilator is commonly caused by? - Answers -secretions or increased resistance in the airways. Major abdominal surgery may cause which pulmonary complication? - Answers - Atelectasis - tx would be pulmonary hygiene and chest x-ray What would minimize pancreatic stimulation? - Answers -Begin feedings via jejunal route - enteral feedings are preferred. Utilization of jejunal feedings maintain gut integrity and minimize pancreatic stimulation. QRS complex is upright in both leads? Negative deflection in both leads depicts an extreme? Negative QRS deflection in Lead 1 and positive deflection in Lead aVF are associated with? - Answers -Axis is normal Extreme Right axis deviation Right axis deviation Priority data to collect for delirium and changes in QTc? - Answers -CAM-ICU and 12 lead ECG Pacemaker setting in A-fib? - Answers -VVI Atria cannot be paced when in atrial fibrillation Alpha cells produce? Beta cells? Delta cells? - Answers -Glucagon Insulin Somatostatin Serum Osmolality of 320 is indicative of: - Answers -DI - profound dehydration will lead to an elevated serum osmolality because of water loss. Contraindications of rtPA include: - Answers -Gastro or other bleeding complications (within 3 months) First sign of problems from a shunt include: - Answers -change in LOC or mental status Ominous sign of acute asthma exacerbation: - Answers -Hypercapnia or elevated PaCO2 indicates patient is becoming fatigued and going into acute respiratory failure. Nephrogenic DI would cause what? - Answers -the kidneys not respond to ADH Lactated ringers at 100ml hr before and after procedure is often prescribed to prevent what? - Answers -Contrast induced nephropathy Keeping the TV (tidal volume) low is the best way to decrease pressures and avoid what? - Answers -Barometric trauma in ARDS Which of the following parameters most accurately estimates end-organ perfusion? - Answers -Urinary output, lactate, ScvO2 Aortic stenosis cause increased noise during systole and impaired outflow, leading to: - Answers -Pulmonary edema and crackles. Tx for neurogenic shock? - Answers -Vasoconstrictor (phenylephrine) over large volume of fluid resuscitation Liver failure labs: - Answers -Elevated bilirubin Decreased albumin elevated PTT, PT & INR When the liver fails: - Answers -ammonia levels build causing encephalopathy. Bilirubin levels rise causing jaundice and coagulation times often prolong putting patient at risk for bleeding. Patients with HIT may develop: - Answers -Thrombosis, DVT, PE, STROKE, MI, Renal impairment Vancomycin has a risk of nephrotoxicity and RN should monitor which lab value: - Answers -Elevated serum creatinine Cerebral insults include: - Answers -ipsilateral pupil changes and contralateral motor extremity changes. Diuretic phase of ATN would include which lab value: - Answers -Decreased urine osmolality Kernig's sign is indicative of: - Answers -Meningitis - pt cannot extend the knee when the hip is flexed. DKA patients have a profound decrease in what: - Answers -Fluids Pancreatitis leads to what? - Answers -ARDS, DIC, hypovolemic shock Glycopyrrolate is part of medical mgmnt for: - Answers -Respiratory failure in patient with chronic pulmonary dz. Thrombolytic therapy using rtPA is most common tx for: - Answers -ischemic stroke Inclusion criteria for thrombolytic therapy: - Answers -over the age of 18 less than 3 hours of onset Risk factors for developing acute kidney injury: - Answers -HTN/PAD/Diabetes Epidural hematoma are associated with what kind of skull fx: - Answers -Arterial in origin and with a linear skull fracture ABG reveals pH 7.22, PaO2 42, PaCO 56, HCO3 28 - what is highest priority? - Answers -Increase PEEP What causes a larger than normal A wave on a PAOP? - Answers -Mitral stenosis - causes increased left atrial pressure during atrial contraction. Pulmonary HTN will result in what? - Answers -Elevated PA pressures but have no impact on PAOP. Infective Endocarditis can cause what kind of impairment? - Answers -Neurologic impairment. One of the risks of infective endocarditis is the bacterial strand breaking in the heart and throwing bacterial emboli forward into the lungs from the right side of the heart or to the brain/body from the left side of the heart. Neurologic impairment could be a sign? - Answers -Embolic ischemic stroke. Post bariatric surgery should avoid what kind of meds? - Answers -Extended release meds due to absorption concerns post-operatively Chlorpropamide is a what? - Answers -sulfonylurea drug that is used in DI as an antidiuretic. It is primarily a glucose lowering agent. (hypoglycemia) Will a cardiac transplant patient respond to atropine? - Answers -No - pacing is the best instrument for symptomatic bradycardia. Elevated urine osmolality; decreased serum osmolality; and decreased serum sodium is what symptom? - Answers -SIADH - causes retention of water. Urine production is minimal and concentrated & leads to an increased urine osmolality. What does Neo drug increase? - Answers -SVR - Peripheral constriction Treatment for narrow complex, regular rhythm? - Answers -Administer 6mg adenosine rapidly IVP Half life of metformin? - Answers -6 hours - close monitoring is required to ensure the blood glucose level does not climb too quickly while dextrose is being administered. Most accurate reflection of daily fluid balance? - Answers -Record a daily weight at the same time each day. Wide mediastinum on chest x-ray, narrow pulse pressure, and hypotension are signs of what? - Answers -Cardiac tamponade A patient with hyponatremia would need what? - Answers -Help maintaining a safe environment. HypoNa impairs judgment, and causes confusion. Peritoneal dialysis works on the principles of both? - Answers -Diffusion and osmosis. HHNS leads to what? - Answers -Large fluid deficits and may require multiple liters of fluid, which is determined by the patient's level of dehydration and hyperosmolality. Which arrhythmia is commonly associated with chronic left sided heart failure? - Answers -A-fib 2nd degree type II and 3rd degree av block are complications associated with occlusion of the left anterior descending artery during acute coronary syndrome. Which set of lab values are consistent with a patient with HHS? - Answers -Anion gap 10 Urine ketones: negative Serum potassium: 4.3 Blood glucose 1050 Tongue swelling and difficulty breathing. You should anticipate? - Answers -Epi: 0.3 mg IM Not Epi: 1mg IV A patient with chronic, severe mitral insufficiency is prone to which of the following dysrhythmias? - Answers -A-fib A medication regimen for a patient with hypertrophic Cardiomyopathy would include? - Answers -CCB & Beta blockers A mechanically ventilated patient has been started on inhaled (Flolan) for the tx of ARDS and refractory hypoxemia. Which hemodynamic value evaluates the effectiveness of this intervention? - Answers -Decreased PAP Which of following is recommended to prevent shivering during induction and the maintenance phase in therapeutic hypothermia? - Answers -Blow warm air across the face or body The pt is placed on CRRT - The nurse know which is a priority when receiving CRRT? - Answers -Frequent electrolyte monitoring to minimize electrolyte shifts 78 yr old female fell at home 1 wk ago. She has been on Coumadin for A-fib for over 1 year. She presents with a complaint of headache. Her family states: "Mom has been acting weird for the past couple days." Scenario is consistent with? - Answers -Subdural hematoma A subdural bleed is usually a slow accumulating, venous bleed. Abnormal neuro changes may not be seen for days or weeks. Epidural hematoma? - Answers -May bleed and accumulate rapidly since they result from arterial bleeding. Cerebral Aneurysm rupture? - Answers -Is associated with patient complaining of "worst HA in their life." During a pt's admission to the ICU, the RN notes Hgb 9g/dl and Hct 27 ml/dl. Which meds should be confirmed with the provider prior to administration? - Answers -Sulfa- trimethoprim (Bactrim) Anemia can be caused or exacerbated by some meds, including sulfa, antibiotics and ACE. A 56 yr male presents in heart block with a ventricular rate of 38 caused from an intentional overdose from CCB. What is appropriate antidote? - Answers -Calcium Which is the earliest sign of Supratentorial (Uncal) herniation? - Answers -Ipsilateral pupil dilation. Pt post-operative day 2 after a right hemicolectomy for ischemic bowel. The post- operative course has been complicated with pain control concerns. As the patient is getting out of bed for the first time the patient complains of sudden wet sounding cough. The assesses new onset tachycardia - Answers -Pulmonary embolism - clinical signs of sudden SOB, anxiety points to PE Glucagon is an antidote for? - Answers -Beta blockers Which port do you get to measure mixed venous blood? - Answers -Distal port DIC - which medication does the nurse anticipate to be ordered and started urgently? - Answers -Heparin continous infusion 4 units/kg/hr Other tx would be to eliminate the cause. Which lab value would expect to see in a patient with pancreatitis? - Answers - Decreased Albumin, elevated amylase and lipase Reversal for warfarin overdose? - Answers -Vit K Low phosphorous causes what? - Answers -constipation, not diarrhea Which of following nursing behaviors is usually most helpful to patients and families regarding end-of-life decisions? - Answers -acting as an arbitrator between family members. Pt receiving PCA, morphine 1 mg per hour IV infusion, and 2 mg q 15 minutes as PRN doses. Pt is having episodes of sleep apnea and is arousable only by touch. Priority interventions include: - Answers -STOP the continuous infusion and give naloxone slow IV until patient awakens. Which patient according to ranson's criteria has poorest prognosis when it comes to acute pancreatitis? - Answers -WBC 32,000; Glucose 220; LDH 400 A shunt requires more than oxygen to correct hypoxemia, for example: - Answers - PEEP Will a V/Q mismatch respond to oxygen administration? - Answers -True What should the patient watch out for when it comes to Myasthenia gravis: - Answers - Muscle weakness Which of the following is the earliest indication that the patient may be aspirating oral feedings? - Answers -Tachypnea and tachycardia The patient was admitted status post motor vehicle crash. The patients sustained an intracranial bleed, is hypotensive, and is tachycardic. The patient's clinical status is most likely due to which of the following? - Answers -Shock from multiple trauma Neurogenic shock and brain herniation result in bradycardia? - Answers -True Pt states he is "sick of it all." Which is the best intervention: - Answers -Consult with Doc regarding a psych consult. Traumatic injury, patient's arterial blood gas shows Respiratory alkalosis - what interventions is best at this time? - Answers -Increase FIO2/assess for pain. Acute anterior wall myocardial infarction and suddenly develops a loud holosystolic murmur, loudest at the left sternal border, 5th intercostal space, tachypnea, and bibasilar crackles. Which of the following would provide most definitive diagnosis of this problem? - Answers -Increased oxygen saturation in the pulmonary artery and the right ventricle. Patient agitated with a RASS score of +3 and behavioral pain scale of 10 (range 3-13). Spo2 AND BREATH sounds are unchanged. BP and heart rate are somewhat higher. Interventions? - Answers -Give morphine 2mg IV Increasing prop won't do anything for the pain.