PLUS RATIONALES | DOWNLOAD AND PASS | LATEST EXAM UPDATE 2026/2027
1. A 55-year-old patient with chronic kidney disease presents with a hemoglobin level of 8.2 g/dL and reports
feeling constantly fatigued. The provider notes the patient is not a candidate for erythropoiesis-stimulating
agents due to a history of stroke. According to the latest guidelines for anemia management in chronic
kidney disease, which of the following is the most appropriate next step?
A. Initiate iron supplementation if iron studies indicate deficiency and maintain a hemoglobin target of 10-11
g/dL.
B. Transfuse packed red blood cells to achieve a hemoglobin level greater than 10 g/dL.
C. Prescribe a course of oral folic acid and vitamin B12.
D. Start darbepoetin alfa at a low dose despite the patient's history to prevent severe anemia.
Correct Answer: A. Initiate iron supplementation if iron studies indicate deficiency and maintain a
hemoglobin target of 10-11 g/dL.
*Rationale: For patients with CKD who are not candidates for ESAs, the goal is to manage anemia through
supportive care, primarily iron repletion if deficient, with a conservative hemoglobin target of 10-11 g/dL. Blood
transfusions are generally avoided unless the anemia is severe or life-threatening due to risks of iron overload and
,sensitization. Folic acid and B12 are not first-line treatments for CKD-related anemia without a documented
deficiency. Initiating ESAs in a patient with a contraindication is unsafe and against guidelines.
2. What is the primary mechanism of action of a typical beta-2 adrenergic agonist used as a rescue
medication for acute bronchospasm?
A. Antagonism of muscarinic receptors, leading to bronchodilation.
B. Inhibition of phosphodiesterase, increasing cyclic AMP levels.
C. Stimulation of adenylate cyclase, increasing cyclic AMP and causing smooth muscle relaxation.
D. Blockade of calcium channels, preventing smooth muscle contraction.
Correct Answer: C. Stimulation of adenylate cyclase, increasing cyclic AMP and causing smooth muscle
relaxation.
*Rationale: Beta-2 agonists bind to beta-2 receptors on airway smooth muscle, which activates the Gs protein and
adenylate cyclase. This increases intracellular cyclic AMP, leading to smooth muscle relaxation and
bronchodilation. Anticholinergics work by blocking muscarinic receptors (A). Phosphodiesterase inhibitors (B) like
theophylline have a different mechanism. Calcium channel blockers (D) are not primary asthma therapy.
,3. A hospital is implementing a new electronic health record system. Which of the following is the MOST
critical component of the implementation plan to ensure patient safety and data integrity?
A. Purchasing the most advanced and expensive software package available.
B. Developing a comprehensive training program for all clinical and non-clinical staff.
C. Ensuring the system interfaces only with the hospital's existing billing software.
D. Mandating that all staff enter data using a uniform template for every patient encounter.
Correct Answer: B. Developing a comprehensive training program for all clinical and non-clinical staff.
*Rationale: The most critical component for patient safety and data integrity is proper staff training. A
sophisticated system is useless and dangerous if users are not proficient. While system interface capability (C) and
data entry standardization (D) are important, they are secondary to user competency. The most expensive software
(A) does not guarantee safety without proper use.
4. A healthcare professional is caring for a patient with a newly inserted chest tube for a pneumothorax. The
chest tube is connected to a closed water-seal drainage system. Which of the following assessment findings
indicates that the lung has fully re-expanded?
, A. Continuous bubbling in the water-seal chamber.
B. Bubbling in the suction control chamber.
C. Cessation of tidal fluctuations (swinging) in the water-seal chamber.
D. The drainage chamber is filled with more than 100 mL of sanguineous fluid per hour.
Correct Answer: C. Cessation of tidal fluctuations (swinging) in the water-seal chamber.
*Rationale: Tidal fluctuations (swinging) in the water-seal chamber reflect changes in intrapleural pressure during
respiration and are a sign the pneumothorax is still resolving. When the lung has re-expanded, these fluctuations
stop. Continuous bubbling in the water-seal chamber indicates an air leak. Bubbling in the suction control
chamber is normal if suction is applied. Excessive drainage (>100 mL/hr) is a sign of hemorrhage, not re-
expansion.
5. In a patient diagnosed with syndrome of inappropriate antidiuretic hormone secretion (SIADH), which of
the following serum laboratory findings would you expect?
A. Hyponatremia, hypo-osmolality, and concentrated urine.
B. Hypernatremia, hyperosmolality, and diluted urine.