Barron/Elsevier CCRN practice test Q&A 2022/2023

ADH - Answer - Phenytoin inhibits _______ secretion Right - Answer - Most episodes of aspiration result in (right/left) lung infiltrates. urine creatinine clearance - Answer - Best indicator of GFR Auto-PEEP - Answer - In a vented patient with status asthmaticus, check for _______________ Air trapping - Answer - An increase in auto-PEEP is a sign of _________________. obstructive pulmonary disease - Answer - A patient with a flattened diaphragm on a Chest X-ray and decreased expiratory flow rate most likely has what type of disease? II and V1 - Answer - ____ and ______ are the two best P wave leads. wide, notched P waves - Answer - What is a manifestation of left atrial enlargement on an EKG in lead II? normal - Answer - Diphasic P waves in lead V1 on 12-lead EKG are abnormal/normal. myoglobin - Answer - _________ is the earliest cardiac biomarker for a MI (elevated within 3hrs s/p MI) and is nonspecific. pleurodesis - Answer - injection of a sclerosing agent into the pleural space and is used for pleural effusion LAD - Answer - The__________ coronary artery supplies the bundle of His and bundle branches anterior (LAD affected) - Answer - _____________ MIs may cause blocks of the bundle of His or bundle branches Right Coronary Artery (RCA)... LCA in 10% of ppl - Answer - Type I AV block, also called Wenckebach, is a block at the AV node, and the AV node is supplied by the ___________________ (in 90% of people) sinus - Answer - the ____________ node is supplied by the RCA in 55% of ppl and LCA in 45%