Ccrn drugs Study guides, Class notes & Summaries

Dobutamine Mechanism of Action Dobutamine, a racemic mixture, stimulates myocardial beta1-adrenergic receptors, resulting in increased contractility and heart rate, and stimulates both beta2- and alpha1-receptors in the vasculature. Although beta2 and alpha1 adrenergic receptors are also activated, the effects of beta2 receptor activation may equally offset or be slightly greater than the effects of alpha1 stimulation, resulting in some vasodilation in addition to the inotropic and chronotrop...

a specialty dealing with human responses to life-threatening problems? - Answer critical care nursing EF (ejection fraction) = amount of blood pumped out of left ventricle; normal percentage? - Answer 55-70% taking critical care nursing & interprofessional teams to non-critical care settings? - Answer Rapid Response Teams (RRT) CADs? - Answer circulatory assist devices back flow of blood in right atrium = what signs/symptoms? - Answer goes back into the rest of the body; JV...

Side effects of Positive Pressure ventilation - 1. Increased intrathoracic pressure leads to decreased venous return to the heart, decreasing stroke volume, and CO Two types of ventilators - 1. Negative pressure ventilators- i.e iron lung 2. Positive pressure ventilators: hospital bedside ventilators, use positive pressure to force air into the lungs by reversing normal breathing patterns. Stimulates both adrenergic and dopaminergic receptors, lower doses are mainly dopaminergic stimulatin...

CRITICAL CARE REGISTERED NURSE(CCRN) NEURO STUDY QUESTIONS WITH VERIFIED ANSWERS GRADED A+ A postcraniotomy patient suddenly stops responding and begins to have a tonic-clonic seizure. Which of the following drugs is considered the preferred first-line antiepileptic agent to give during a seizure? A family member of a patient in the ICU, who recently experienced a TBI, asks the nurse how long the patient will have to be on seizure medications as the patient has not had a seizure. Which of the...

CCRN Pulmonary Question Bank Questions and Answers Already Passed What will the possibility of fever have on an ABG? the pH will rise - the oxyhemoglobin curve will be shifted to the right What effect will the lack of icing an ABG have on the sample? it will invalidate the sample by causing the PaCO2 to rise approx 3-10 mmHg/hr,PaO2 & pH will decrease You are asked to draw an ABG. You prepare a glass syringe w/ heparin. What effect will too much heparin have on the sample? it will decrease the...

Renal/Genitourinary Barrons CCRN Exam Questions and Answers 100% Pass comorbidities that put the pt at risk for developing AKI - Answer- Diabetes Heart failure Hypertension nephrotoxic substances - Answer- Antibiotics NSAIDS ACE inhibitors, ARBS Antineoplastics Contrast media Diuretics measures the amount of nitrogen in the blood that comes from the waste product urea (formed in the liver) - Answer- BUN- blood urea nitrogen Normal Blood Urea Nitrogen (BUN) - Answer- 10-23 mg/dL non...

Neuro CCRN Study questions and answers A postcraniotomy patient suddenly stops responding and begins to have a tonic-clonic seizure. Which of the following drugs is considered the preferred first-line antiepileptic agent to give during a seizure? A. Diazepam B. Lorazepam C. Phenytoin D. Phenobarbital B Benzodiazepines are used as a first-line drug during a seizure. They potentiate GABA, which is an inhibitory neurotransmitter. Even though diazepam is also a benzodiazepine and can be used...

Renal/Genitourinary Barrons CCRN Exam Questions and Answers 100% Pass comorbidities that put the pt at risk for developing AKI - Answer- Diabetes Heart failure Hypertension nephrotoxic substances - Answer- Antibiotics NSAIDS ACE inhibitors, ARBS Antineoplastics Contrast media Diuretics measures the amount of nitrogen in the blood that comes from the waste product urea (formed in the liver) - Answer- BUN- blood urea nitrogen Normal Blood Urea Nitrogen (BUN) - Answer- 10-23 mg/dL non...

CCRN PRACTICE QUESTIONS (2022/2023) Already Passed A patient in the ED with complaints of chest pain. The 12-lead EKG shows ST elevation in leads V3 and V4. Occlusion of the affected coronary artery most likely would affect perfusion to which portion of the conduction system? A. Sinoatrial (SA) node B. Bachmann's bundle C. Atrioventricular (AV) node D. Bundle of His LAD so D. bundle of his Which of the following is the preferred lead for ST segment monitoring for a patient with a suspected...

CCRN Exam Questions and Answers 100% Pass most common entry for microbes into lungs - Answer- aspiration initial output from ostomy - Answer- > large volume liquid out to determine teaching the nurse must first - Answer- assess learning needs first grasping reflex normal or no? - Answer- shows cortical damage to the brain late complication of SAH - Answer- hydrocephalus Glasgow Coma Scale - Answer- eyes, verbal, motor Max- 15 pts, below 8= coma obtunded vs stuporous - Answer- stuporou...