ATI LPN
ATI The Medical Surgical Endocrine Test Questions
Question 1 of 5
During muscle contraction:
Correct Answer: D
Rationale: All occur: overlap increases, I band shrinks, Z-lines approach, H band narrows as actin/myosin slide.
Question 2 of 5
The common pathway of coagulation is initiated by the:
Correct Answer: A
Rationale: Factor X activation unites intrinsic/extrinsic pathways in common coagulation.
Question 3 of 5
Each of the following is true regarding the spleen, except:
Correct Answer: C
Rationale: Spleen filters blood, not lymph; it's a secondary lymphoid organ.
Question 4 of 5
The pulmonary ventilation rate for someone with tidal volume of 500 mL and a respiration rate of 14 bpm is:
Correct Answer: C
Rationale: Ventilation = TV × RR = 0.5 L × 14 = 7 L/min.
Question 5 of 5
The kidney does all of the following when the pH of the extracellular fluid drops, EXCEPT:
Correct Answer: B
Rationale: In acidosis, kidneys excrete H+ and reabsorb HCO3-, not excrete less HCO3-.