The nurse ensures which laboratory study is collected regularly to monitor the effectiveness and safety of the patient's continuous unfractionated heparin infusion?

A patient’s arterial blood gas results are as follows: pH = 7.50 PaCO2 = 40 mmHg PaO2 = 94 mmHg HCO3 = 32 mEq/L SaO2 = 96% How does the nurse interpret these results?

The 50-year-old previously healthy patient complains of shortness of breath, especially on exertion or when laying down to sleep. She takes over-the-counter allergy medicine for seasonal allergies and melatonin to help her sleep sometimes. Her vital signs are heart rate of 64 bpm, respirations 22, oxygen saturation 99%, and blood pressure 114/68 mmHg. Her assessment is notable for crackles over the bilateral lung bases and a moderate diastolic apical murmur. The nurse prepares the patient for which initial tests? Select all that apply.