These CNOR practice questions target diagnostics — including MTP, AS, Aortic Stenosis, Right Shift. The complete CNOR deck holds 1050 flashcards, 60 of them dedicated to this topic. Study the free samples below, then unlock the whole collection for a one-time $7.
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A patient scheduled for an elective total knee arthroplasty has a preoperative platelet count of 45,000/mm³. What is the most appropriate nursing action according to current perioperative standards?
Show answer →Notify the surgeon and anesthesia provider immediately. For most major elective surgeries, a platelet count >50,000/mm³ is required to ensure adequate intraoperative hemostasis. For high-risk areas like neurosurgery or spine, >100,000/mm³ is typically required. A count <50,000/mm³ increases the risk of surgical site bleeding and may necessitate a delay or preoperative platelet transfusion. CCI Tip: Always prioritize patient safety by identifying values that fall below the safe to proceed threshold for the specific procedure type.
A patient receiving a massive transfusion (MTP) shows prolonged QT intervals on the ECG. Which BMP value is most likely affected, and what is the underlying mechanism?
Show answer →Hypocalcemia (specifically ionized calcium). Citrate used as an anticoagulant in stored blood products binds to the patient's free calcium ions, leading to citrate toxicity. Clinical Pearl: Monitor calcium levels every 2-4 units of PRBCs. CCI Tip: Differentiate between total calcium and ionized calcium; ionized is the physiologically active form critical for cardiac contractility.
A patient is undergoing a stereotactic breast biopsy. The radiologist has placed a localizing wire. What is the perioperative nurse's priority action regarding the imaging films sent with the patient to the OR?
Show answer →Confirm that the films or digital images clearly show the wire's position relative to the lesion and that the specimen radiograph is scheduled. If a specimen is removed, the nurse must facilitate immediate imaging of the tissue to verify the lesion or clip is contained within the sample before the surgeon closes. Strategy: CCI focuses on the loop of verification—pre-op imaging, intra-op localization, and post-excision confirmation.\
A patient presents with a history of severe Aortic Stenosis (AS). Which hemodynamic goal is most critical for the perioperative nurse to help maintain during the intraoperative period?
Show answer →The primary goal is maintaining Fixed Stroke Volume support: 1. Maintain Preload: The stiff LV requires high filling pressures. 2. Maintain Afterload (SVR): A drop in SVR can lead to a fatal cycle of decreased coronary perfusion. 3. Maintain Sinus Rhythm: Loss of atrial kick (as in Afib) can decrease cardiac output by 30%. Exam Strategy: AS is the most dangerous valvular lesion in non-cardiac surgery. Avoid tachycardia and hypotension. If the patient becomes hypotensive, phenylephrine (a pure alpha-agonist) is often preferred over ephedrine.
How does a Right Shift in the oxyhemoglobin dissociation curve affect oxygen delivery to tissues, and what three intraoperative conditions typically cause this shift?
Show answer →A Right Shift decreases hemoglobin's affinity for O2, making it easier for O2 to be released to tissues (increased delivery). Causes: Hyperthermia (fever), Acidosis (low pH), and Hypercapnia (high CO2). Mnemonic: CADET, face Right! (CO2, Acid, DPG, Exercise, Temp). CCI tests these shifts to assess understanding of oxygenation during physiological stress.
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Try 30 free CNOR cards firstThe full CNOR deck contains 1050 flashcards, and 60 of them focus on diagnostics. This page shows 5 free samples.
Our CNOR deck dedicates 60 of 1050 cards (6%) to diagnostics — always cross-check the official CCI exam outline for the current blueprint weighting.
Yes — the samples on this page are free, and the CNOR preview page has 30 more free cards. Full access to all 1050 cards is a one-time $7.
Assessment
110 cards
Basics
80 cards
Management
200 cards
Pathology
80 cards
Pharmacology
90 cards
Procedures
270 cards
Safety
120 cards
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