Final answer:
Common symptoms of sudden heart failure in a pregnant client include breathlessness, giddiness, pallor, and in severe cases, edema, and possibly an acute heart condition like broken heart syndrome. Such events can lead to acute heart failure, arrhythmias, or ventricular rupture.
Step-by-step explanation:
If a client with conditions during pregnancy experiences sudden heart failure, the most common symptoms one might observe include breathlessness on exertion, giddiness, and pallor of the skin. In more severe cases, symptoms can escalate to edema of the ankles, enlarged liver or spleen, and anemia. Specific to heart conditions like broken heart syndrome (Takotsubo cardiomyopathy), one may also see signs such as acute heart failure, lethal arrhythmias, or even ventricular rupture. Furthermore, congestive heart failure could be associated with symptoms like fever, jaundice, hypotension, and possibly leading to more severe complications such as kidney failure and death.