Ultimate NCLEX-RN & Nursing Clinical Practice
Companion
High-Yield Medical-Surgical, Pharmacology, Ethics, and 100-Question Exam Prep
Designed for Quick Revision, Mastery, and High-Scoring Exam Uploads
Core Exam Study Matrices
1. Key Fluid & Electrolyte Ranges & Clinical Indicators:
- Sodium (N a+ ): 135 − 145 mEq/L → Primary neuro-regulator. Imbalance leads to mental status changes,
seizures, cerebral edema.
- Potassium (K + ): 3.5 − 5.0 mEq/L → Primary cardiac-regulator. Hyperkalemia (peaked T waves); Hy-
pokalemia (flat T waves, U waves).
- Calcium (Ca2+ ): 8.5 − 10.5 mg/dL → Muscle/nerve function. Hypocalcemia (↑ neuromuscular irritability,
Trousseau’s/Chvostek’s).
2. Critical Pharmacological Targets:
- Digoxin (Lanoxin): Therapeutic range: 0.5 − 2.0 ng/mL. Toxicity: Visual changes (green/yellow halos),
Bradycardia. Antidote: Digibind.
- Heparin / Warfarin: Heparin monitored by aPTT (Antidote: Protamine Sulfate). Warfarin monitored by
PT/INR (Antidote: Vitamin K).
Essential Clinical Frequently Asked Questions (FAQs)
Q1: How do I systematically prioritize patients during triage/shift changes?
Answer: Utilize the ABC (Airway, Breathing, Circulation) priority matrix, followed immediately by systemic
versus local issues, acute versus chronic alterations, and stable versus unstable changes. If physiological
systems are stabilized, evaluate using Maslow’s hierarchy of needs (e.g., safety, pain control).
Q2: What are the golden rules of Blood Transfusion therapy?
Answer: (1) Verify typing and crossmatch with a second licensed nurse. (2) Ensure a patent IV line (minimum
20G, ideally 18G). (3) Start infusion slowly and remain with the patient for the first 15 minutes. (4) Complete
the entire unit of blood within 4 hours. (5) In case of suspected hemolytic or febrile reaction, stop the infusion
immediately, start standard saline through new tubing, and notify the physician.
Q3: Explain the essential parameters of Acid-Base Balance (ABGs) and compensatory processes.
Answer: Normal ranges: pH: 7.35 − 7.45, P aCO2 : 35 − 45 mmHg, HCO3 : 22 − 26 mEq/L.
- Respiratory Acidosis: pH < 7.35, P aCO2 > 45. Common in hypoventilation (COPD, drug overdose).
- Metabolic Acidosis: pH < 7.35, HCO3 < 22. Common in Diabetic Ketoacidosis (DKA), severe diarrhea,
renal failure.
- Respiratory Alkalosis: pH > 7.45, P aCO2 < 35. Common in hyperventilation, anxiety.
- Metabolic Alkalosis: pH > 7.45, HCO3 > 26. Common in prolonged vomiting or gastric suctioning.
1
Companion
High-Yield Medical-Surgical, Pharmacology, Ethics, and 100-Question Exam Prep
Designed for Quick Revision, Mastery, and High-Scoring Exam Uploads
Core Exam Study Matrices
1. Key Fluid & Electrolyte Ranges & Clinical Indicators:
- Sodium (N a+ ): 135 − 145 mEq/L → Primary neuro-regulator. Imbalance leads to mental status changes,
seizures, cerebral edema.
- Potassium (K + ): 3.5 − 5.0 mEq/L → Primary cardiac-regulator. Hyperkalemia (peaked T waves); Hy-
pokalemia (flat T waves, U waves).
- Calcium (Ca2+ ): 8.5 − 10.5 mg/dL → Muscle/nerve function. Hypocalcemia (↑ neuromuscular irritability,
Trousseau’s/Chvostek’s).
2. Critical Pharmacological Targets:
- Digoxin (Lanoxin): Therapeutic range: 0.5 − 2.0 ng/mL. Toxicity: Visual changes (green/yellow halos),
Bradycardia. Antidote: Digibind.
- Heparin / Warfarin: Heparin monitored by aPTT (Antidote: Protamine Sulfate). Warfarin monitored by
PT/INR (Antidote: Vitamin K).
Essential Clinical Frequently Asked Questions (FAQs)
Q1: How do I systematically prioritize patients during triage/shift changes?
Answer: Utilize the ABC (Airway, Breathing, Circulation) priority matrix, followed immediately by systemic
versus local issues, acute versus chronic alterations, and stable versus unstable changes. If physiological
systems are stabilized, evaluate using Maslow’s hierarchy of needs (e.g., safety, pain control).
Q2: What are the golden rules of Blood Transfusion therapy?
Answer: (1) Verify typing and crossmatch with a second licensed nurse. (2) Ensure a patent IV line (minimum
20G, ideally 18G). (3) Start infusion slowly and remain with the patient for the first 15 minutes. (4) Complete
the entire unit of blood within 4 hours. (5) In case of suspected hemolytic or febrile reaction, stop the infusion
immediately, start standard saline through new tubing, and notify the physician.
Q3: Explain the essential parameters of Acid-Base Balance (ABGs) and compensatory processes.
Answer: Normal ranges: pH: 7.35 − 7.45, P aCO2 : 35 − 45 mmHg, HCO3 : 22 − 26 mEq/L.
- Respiratory Acidosis: pH < 7.35, P aCO2 > 45. Common in hypoventilation (COPD, drug overdose).
- Metabolic Acidosis: pH < 7.35, HCO3 < 22. Common in Diabetic Ketoacidosis (DKA), severe diarrhea,
renal failure.
- Respiratory Alkalosis: pH > 7.45, P aCO2 < 35. Common in hyperventilation, anxiety.
- Metabolic Alkalosis: pH > 7.45, HCO3 > 26. Common in prolonged vomiting or gastric suctioning.
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