NCLEX Buddy Blog

• Digoxin Toxicity, From Nausea to Bidirectional VT

  Gastrointestinal symptoms often come first and the visual changes are the giveaway. One rhythm is essentially diagnostic.

• Vitamin K Reversal and When the Oral Route Is Enough

  Whether the patient is actively bleeding changes the whole answer. Oral vitamin K has a published time to effect worth remembering.

• Warfarin and the Four Vitamin K Dependent Factors

  Two, seven, nine and ten. Knowing which factors stop being made explains both the delay in onset and the reversal strategy.

• Heparin-Induced Thrombocytopenia, the Paradox Worth Knowing

  Platelets fall and the patient clots more, not less. That contradiction is exactly why exam writers like this complication.

• Protamine Sulfate and the Heparin Reversal Arithmetic

  One milligram neutralises roughly a hundred units, and it works within minutes. Both halves of that show up in questions.

• Heparin, Antithrombin and the aPTT Ratio

  Heparin works through antithrombin, and the monitoring target is expressed as a multiple of control rather than a fixed number of seconds.

• Infection Control Inside the PN Safety Category

  This category carries the same weight on both test plans, which makes it one of the best places for a PN candidate to invest study time.

• When No Airborne Isolation Room Is Available

  CDC describes an interim approach for exactly this situation, and it is a reasonable exam answer when the ideal option is missing.

• Respiratory Hygiene and Cough Etiquette as a Standard

  Cover the cough, use tissues, clean hands, mask if tolerated. CDC also names a spatial separation figure here, and it is the same one.

• Aerosol-Generating Procedures and the Protection They Add

  Some procedures upgrade your PPE regardless of what precautions the room is already under. Knowing which ones is the exam-relevant part.

• Air Changes Per Hour: Twelve for New, Six for Existing

  A specific engineering figure that shows up in exam questions more often than you would expect, with a different number for older buildings.

• N95 Respirators Versus Surgical Masks on the Exam

  One is donned before you enter and requires fit testing. The other goes on at the door. Questions live in exactly that gap.

• Airborne Precautions and the Negative Pressure Room

  Negative pressure, a set number of air changes per hour, and air that leaves the building or goes through a filter. Placement is the point.

• Contact Precautions Mean Gown and Gloves on Entry

  Both, on the way in, off before you leave. The bed separation requirement in a shared room is the part candidates forget.

• Neisseria Meningitidis Is Not the Same Thing as Meningitis

  CDC's droplet list names an organism, not a syndrome. Treating every meningitis as a droplet case is a common and costly shortcut.

• Where the Six-Foot Number Came From and Why It Is Not This

  Six feet is widely quoted for droplet precautions and it does not come from the 2007 guideline. Knowing the difference protects your answer.

• Droplet Precautions and the Three-Foot Figure

  CDC's own 2007 text gives a spatial separation of at least three feet in two separate places. That is the figure this guideline supports.

• Standard Precautions Apply to Every Patient, Every Time

  CDC calls these the primary strategy for preventing healthcare-associated transmission. They do not depend on knowing a diagnosis.

• Acid-Base Changes You Can See Before the Gas Comes Back

  Respiratory rate, level of consciousness and muscle irritability move before the printout does. Those are the findings PN items reward.

• What PN Candidates Actually Need From an ABG Question

  PN items lean toward recognising the pattern and reporting it rather than adjusting ventilation. That narrows the study list considerably.

• Base Excess and the Four Buffers Nobody Studies

  Base excess has a published normal range and four named buffer systems sit behind it. Both are quietly useful in harder items.

• The Lungs Compensate in Minutes, the Kidneys Take Days

  That single contrast explains why some gases look half-fixed and others look fully fixed. It is the most useful acid-base fact there is.

• Metabolic Alkalosis and the Vomiting Patient

  Lose enough gastric acid and the bicarbonate wins. The electrolyte picture that comes with it is half the exam question.

• Metabolic Acidosis and the Causes You Will Meet in a Stem

  Bicarbonate falls, respirations deepen, and the compensation is visible before any lab comes back. Here is how the pattern reads.

• Respiratory Alkalosis and the Hyperventilating Patient

  Blowing off carbon dioxide raises the pH quickly. The tingling and lightheadedness in the stem are the clue before the gas arrives.

• Respiratory Acidosis and What the Patient Looks Like

  Retained carbon dioxide has a face: drowsy, slow, confused. The gas confirms what the assessment already suggested.

• Step Four: Oxygenation Is a Separate Question

  PaO2 and saturation do not tell you the acid-base disorder. They tell you something else that can be just as urgent.

• Step Three: Spotting Compensation in the Numbers

  Compensation shows up as the second value moving in a direction that does not fit the pH. That mismatch is the whole signal.

• Step Two: Deciding Respiratory Versus Metabolic

  Compare the carbon dioxide and the bicarbonate against the pH. Whichever one moves the same direction as the problem is the driver.

• Step One: Does the pH Say Acidemia or Alkalemia?

  Before anything else, put the pH on one side of the line. Everything after that is deciding who caused it and who is trying to fix it.