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OVERVIEW:
NUR 170 Exam 3 Review – 2026/2027 covers cardiac and peripheral vascular
disorders, diabetes management, and musculoskeletal complications. Key areas
include cardiac catheterization precautions, arterial versus venous insufficiency,
Raynaud's, heart failure teaching and emergencies including pulmonary edema,
hypertension assessment, atherosclerosis labs, arrhythmias and ECG
interpretation, diuretics, insulin administration, HbA1c, fat embolism syndrome,
and long-term IV antibiotic home care planning.
Answers are in bold Green, with rationales after.
1) A client admitted with chest pain and type 2 diabetes scheduled for cardiac
catheterization. Which medication would need to be withheld for 24h before and 48h
after?
1. Glipizide
2. Metformin
3. Repaglinide
4. Regular insulin
, Rationale: Metformin + contrast = lactic acidosis risk. Hold 24h before and 48h after,
restart only after creatinine normal. Contrast-induced AKI impairs metformin
excretion.
2) Home care nurse: arterial ischemic leg ulcer - which statement indicates need for
further instruction?
1. I need to be sure not to go barefoot
2. Cut toenails straight across
3. Lanolin to feet but not between toes
4. Elevate leg above heart for at least an hour daily
Rationale: Arterial insufficiency: elevation decreases perfusion. Keep legs dependent
to improve arterial flow. Venous insufficiency is opposite - elevate.
TABLE 1: Arterial vs Venous Ulcers
Feature Arterial (Ischemic) Venous (Stasis)
Cause Atherosclerosis, ↓ arterial Valve incompetence,
flow venous pooling
Location Toes, heel, lateral ankle - Medial malleolus, gaiter
punched-out area - irregular
Pain Severe, ↑ with elevation, Dull, ↑ with standing, ↓
↓ dependent dangling elevation
Pulses/Skin Absent pulses, Present pulses, brown
pale/cool/shiny/hairless edema, weeping
Management Dependent position, NO Elevation, compression
compression therapy