HEMATOLOGY/IMMUNOLOGY CCRN- Critical Care Registered Nurse Study Questions 2024/2025 Completely Solved 100%
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HEMATOLOGY/IMMUNOLOGY CCRN
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HEMATOLOGY/IMMUNOLOGY CCRN
HEMATOLOGY/IMMUNOLOGY CCRN- Critical Care Registered Nurse Study Questions 2024/2025 Completely Solved 100%
The CCRN certification exam assesses a nurse’s knowledge and expertise in caring for critically ill patients, including topics such as hemodynamics, pharmacology, and patient assessment. ...
HEMATOLOGY/IMMUNOLOGY CCRN- CRITICAL CARE REGISTERED NURSE
HEMATOLOGY/IMMUNOLOGY CCRN- Critical
Care Registered Nurse Study Questions
2024/2025 Completely Solved 100%
A Patient Admitted Post-Abdominal Surgery Develops Acute Renal Failure. He Is
Currently On Low-Molecular-Weight Heparin (LMWH) For VTE Prevention, And The
Physi- Cian Wants To Monitor The Effectiveness Of The LMWH. Which Of The
Following Lab Tests Would Be The Best For Monitoring LMWH?
A. Platelet Aggregometry
B. Activated Partial Thromboplastin Time (Aptt) C. PT With INR
D. Anti-Xa Assay [Correct Ans Is: - D
LMWH Does Not Typically Require Monitoring But In Certain Situations Of
Increased Risk Or Potential Interference With The Drug's Effectiveness Or Risk
Of Bleeding, An Anti-Xa Assay May Be Used To Monitor LMWH. The Aptt And PT
With INR Does Not Alter With The Administration Of LMWH So Is Not Be Used To
Monitor Effectiveness. Platelet Aggregometry Is Used To Monitor Effectiveness
Of Antiplatelet Drugs.
A Patient On Coumadin Presents With An ICH And INR Of 3.5. Which Of The
Following Interventions Would Be Most Appropriate At This Time?
A. Oral Vitamin K And FFP
B. Protamine Sulfate And Platelets
C. IV Vitamin K And FFP
D. IV Vitamin K And Cryoprecipitate [Correct Ans Is: - C
Vitamin K And FFP Are Used To Reverse Bleeding Or Potential Bleeding
Complications With Coumadin. Protamine Sulfate Is Used To Reverse Any
Adverse Effects Of Heparin. Oral Vitamin K May Be Used In Patients With High
INR But With No Signs Of Bleeding. Signs Of Bleeding Require Vitamin K To Be
Administered Via IV For More Rapid Reversal. The Oral Route Is Slower But
Safer. The IV Route, However, Has A Small Risk Of Anaphylaxis.
Which Of The Following Laboratory Tests Is Considered To Be The Most Specific To
DIC?
A. Aptt
, HEMATOLOGY/IMMUNOLOGY CCRN- CRITICAL CARE REGISTERED NURSE
B. PT With INR
C. Fibrinogen Levels
D. D-Dimer [Correct Ans Is: - D
DIC Is The Only Coagulopathy In Which The Patient Clots First And Then Bleeds.
The For- Mation Of Clots In The Microcirculation Causes Activation Of The
Thrombolytic System And Breakdown Of The Clots. The D-Dimer Measures The
Byproducts (Fibrin Degradation Prod- Ucts) Of The Clot. There Are Multiple
Coagulopathies That Can Elevate Aptt And/Or PT With INR. Fibrinogen Levels Can
Decrease In DIC, Following Massive Blood Transfusions.
A Patient Has Been In The ICU For 7 Days After Intubation For Severe Pneumonia.
She Has Been Receiving VTE Prophylaxis With Subcutaneous Heparin Injections
Since Admission To The ICU. A DVT Was Just Diagnosed In Her Left Calf, And She Is
Noted To Have A Platelet Count Of 55,000. Which Of The Following Is The Most
Likely Complication?
A. Hemolytic Uremic Syndrome (HUS)
B. HIT
C. DIC
D. ITP [Correct Ans Is: - B
The Hallmark Sign Of HIT Is A Significant Decrease In Platelet Count (> 50%) Over A
24-Hour Period Without Any Other Known Causes For Thrombocytopenia Within 4
To 14 Days After Starting Heparin. The Peak Incidence Occurs 5 To 10 Days After
Initiation Of Heparin. The Other Sign Of HIT In This Scenario Is The Diagnosis Of A
DVT Even After Being On Heparin For Prevention. DIC And ITP Can Decrease Platelet
Count, But They Are Not The Best Answers Because The Scenario Indicates That The
Patient Is On Heparin And Has A Newly Developed DVT Within 7 Days Of The
Initiation Of Heparin. This Leads To The Answer Of HIT.
Cryoprecipitate Can Be Used In Managing Actively Bleeding Patients. In Which Of
The Fol- Lowing Situations Would Cryoprecipitate Most Likely Be Used?
A. Low Fibrinogen Level
B. Anticoagulant Overdose
C. Thrombocytopenia
D. Hemolytic Anemia [Correct Ans Is: - A
Cryoprecipitate Is Used To Manage Actively Bleeding Patients With Low Fibrinogen
Levels In Combination With FFP. It Can Be Used To Reverse Anticoagulation
Overdoses But Is Not The Blood Product Of Choice. FFP Contains More Coagulation
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