Thứ Hai, 6 tháng 4, 2015

8 Basic Free CNA Practice Exam 2014 Questions and Answers on Drugs for Cardiac Arrest

Cardiac arrest and shock are the dangerous situations when the patients’ health or life is at risk. If the nursing assistant doesn’t realize the signs of cardiac arrest soon, the life of patients can be put in a danger. So, to improve the knowledge of shock and cardiac arrest for both nursing students and nurses, 8 Basic Free CNA Practice Exam 2014 Questions and Answers on Drugs for Cardiac Arrest brings up some basic understanding to realize the signs of this threat and some ways to decrease the appearance of cardiac arrest in patients. These free CNA test questions are also extremely useful for students to practice and perfect their exam preparation. Why don’t you try to take it out for enhancing your nursing knowledge? You will never feel regret!






8 Basic Free CNA Practice Exam 2014 Questions and Answers on Drugs for Cardiac Arrest

Direct relaxation of arteriolar and venous smooth muscle-Decreases preload and afterload-Used for hypertensive crisis, acute CHF-Black box warning: Cyanide oxicity, hypotension-Drug/Herb interactions: aconite (death), balck cohosh, bloodroot, burdock, dandelion, kelp, Irish moss, mistletoe, parsley, guarana, licoraceRenal and hepatic studies-Electrolytes-Thiocyanate toxicity: confusion, weakness, seizures, hyperreflexia, psychosis, tinnitus, coma-REPORT: headache, dizziness, loss of hearing, blurred vision,
Increases HR, CO, contractility-Treat hypovolemia first: digoxin (Lanoxin) before dobutamine-Incompatible with other meds when given through IV-REPORT: dyspnea, chest pain, numbness of extremities, headache, IV site discomfort
Vasoconstrictor, increases BP and CO-Infuse with DEXTROSE-Nursing Considerations: Reflex bradycardia- Monitor I and O- Decrease med if BP increases- Monitor BP and HR q2-3 min after parenteral route Necrosis/skin sloughing with extravasation—administer phentolamine with 0.9% NaCl- Peripheral blood flow may decrease-REPORT: dyspnea, dizziness, chest pain-Treatment of Overdose: fluids, electrolyte replacement
Allergies, rhinitis, motion sickness, antiparkinsonian-Discontinue if urinary retention, frequency, or dysuria-CBC with long-term therapy-Respiratory status assessment- Causes drowsiness, photosensitivity-Not to be used with alcohol or other CNS depressants-Treatment of Overdose: diazepam, vasopressors, phentoin IV
Vasoconstrictor, increases CO and BP - Low-dose => renal and mesentery vasodilation High-dose =>vasoconstrictor/alpha effects, increased myocardial oxygen consumption - Nursing Considerations:Assess—hypovolemia, oxygenation and perfusion, heart failure (S3 gallop, neck vein distension, crackles), I and O, BP and pulse 5min (if BP increases, decrease dosage) - Headache first symptom of drug overdose-Necrosis/skin sloughing with extravasation—administer phentolamine mixed with NS-Treatment of Overdose:
Action: bronchodilation, cardiac and CNS stimulation-High doses—vasoconstriction-Low doses—vasodilation -Nursing Considerations:Assess—BP and pulse q5min, necrosis and sloughing (give phentolamine mixed with NS), cardiac status, I & O, glucose in diabetics-Rinse mouth after use to prevent dryness after inhalation-Treatment of Overdose: alpha blocker and beta blocker
Increases contractility-Direct relaxation on vascular smooth muscle-Decreases preload and afterload-Used for HF-D/C if platelets are <150,000-Extravasation risk-Change site q48hr-Monitor electrolytes, renal studies, and blood studies-REPORT: angina immediately during infusion, headache
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